Non native plant wrkshp various families

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Information about Non native plant wrkshp various families
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Published on December 14, 2007

Author: Miguel

Source: authorstream.com

NON-NATIVE PLANTS OF ALASKA: Borage Family (Boraginaceae), Goosefoot Family (Chenopodiaceae), Pink Family (Caryophyllaceae), Knotweed Family (Polygonaceae), Rose Family (Rosaceae), Plantain Family (Plantaginaceae), Buttercup Family (Ranunculaceae), Poppy Family (Papaveraceae), Mint Family (Lamiaceae), and Figwort Family (Scrophulariaceae):  NON-NATIVE PLANTS OF ALASKA: Borage Family (Boraginaceae), Goosefoot Family (Chenopodiaceae), Pink Family (Caryophyllaceae), Knotweed Family (Polygonaceae), Rose Family (Rosaceae), Plantain Family (Plantaginaceae), Buttercup Family (Ranunculaceae), Poppy Family (Papaveraceae), Mint Family (Lamiaceae), and Figwort Family (Scrophulariaceae) Matt Carlson, & Helen Cortes-Burns Slide2:  Forget-me-not/Borage family (Boraginaceae) Flatspine stickseed Lappula occidentalis European stickseed Lappula squarrosa Annual, biennial Bristly herb Leaves: narrowly lanceolate to oblanceolate, hairy Flowers: 5, small, pale blue petals Nutlets: 2 distinct rows of marginal prickles South Coastal Interior-Boreal Disturbed areas, roadsides, waste areas, and cultivated fields Annual, biennial Nutlets 1 distinct row of stout marginal prickles South Coastal Interior-Boreal Native? – Cody suggests likely introduced in the Yukon Dry, sandy hillsides Slide3:  Forget-me-not/Borage family (Boraginaceae) Native Forget-me-not Myosotis asiatica (M. alpestris ssp. asiatica) Forget-me-not Myosotis scirpoides (Myosotis palustris) Calyx teeth length = width Rhizomatous perennial Leaves: oblong lanceolate, scattered hairs Flowers: 5, small, pale blue petals Nutlets: smooth South Coastal Occasionally escaped cultivation Calyx teeth longer than broad Perennial Leaves: withered at the base, long petiolated, oblong lanceolate, scattered hairs Flowers: 5, small, pale blue petals Nutlets: smooth NATIVE, All over AK Subalpine to alpine meadows Slide4:  Goosefoot family (Chenopodiaceae) Blite goosefoot Chenopodium capitatum Lambsquarters Chenopodium album Annual Stems often become reddish with age Leaves: triangular, green above and white-mealy below Flowers: clustered in panicles 5 tiny, greenish sepals Seeds are black, shiny, circular and flattened, enclosed in a thin, white, papery envelope Arctic Coastal Boreal Disturbed soils in clearings, burns, river bars, cultivated soil and waste places. Annual Hairless, succulent Leaves: triangular, hairless Flowers: clustered in globose, sessile heads which form interrupted spikes 3-5 fleshy sepals that turn red at maturity Seeds are black and lens-shaped Boreal Native Disturbed areas, roadsides, waste areas, and cultivated fields Slide5:  Carnation or Pink family (Caryophyllaceae) Red catchfly Silene dioica Perennial Stems erect, dichotomously branched, glandular hairs in upper part of the plant Leaves: Opposite lower leaves egg-shaped, upper leaves broadly elliptic Flowers: 5, deeply notched red-purplish or pink petals 3-5 styles Male-only or female-only flowered-plants. Fruit: egg-shaped capsule with 5 toothed halves; seeds black South-Coastal (collected in Palmer, AK) Disturbed soils Slide6:  Carnation or Pink family (Caryophyllaceae) Night-flowering catchfly Silene noctiflora Annual Stems 1 to 3, woody, sticky hairs Leaves: opposite, with sticky hairs broadly lanceolate at the base, linear lanceolate towards the apices Basal leaves stalked, upper leaves stalkless Flowers: 5, deeply notched white to pink petals Fruit: capsule opens by 6 teeth, and has 10 distinct green veins. Seeds are grey and kidney-shaped. Interior-Boreal South-Coastal Disturbed soils such as roadsides and waste areas Slide7:  White cockle Silene latifolia ssp. alba Perennial or biennial Plants are either female or male Stems erect, dichotomously branched, with sticky hairs Leaves: Opposite Linear lower leaves stalked, upper leaves sessile Flowers: 5, deeply notched, white petals 10 stamens in male flowers 4-5 styles in female flowers Fruit: ovate capsule that opens by 10 teeth; seeds kidney shaped, grey to brown. South-Coastal. Collected in the Eklutna, Matanuska and Susitna valleys, AK. Disturbed grounds Carnation or Pink family (Caryophyllaceae) Slide8:  Common chickweed/Common starwort Stellaria media Annual Stems erect or trailing, often matted, dichotomously branched, with fine white hairs Leaves: Opposite broadly egg-shaped lower leaves stalked, upper leaves sessile Flowers: 5, deeply notched white petals, often looking more like 10 distinct petals 3-10, reddish stamens, 3 styles Fruit: single chambered capsule, opens by 6 teeth seeds are warty, and pale-yellow to reddish brown Circumpolar Cultivated or disturbed land Carnation or Pink family (Caryophyllaceae) Slide9:  Red sandspurry Spergularia rubra Perennial or biennial Densely glandular-hairy plant Trailing stems Leaves opposite, thread-like Clustered in fascicles stipules free, lustrous, silvery Flowers pale red Seeds not smooth (papillate); capsule as long as sepals South-Coastal Open or gravelly or sandy habitats Carnation or Pink family (Caryophyllaceae) Western sandspurry Spergularia canadensis var. occidentalis Annual Hairless (or very slightly glandular) plant Trailing stems Leaves: opposite, thread-like, fleshy not clustered Stipules fused Flowers white-pink, with sepals as long or longer than petals Seeds smooth South-Coastal NATIVE Saline and brackish soils Slide10:  Corn spurry Spergula arvensis Annual Plant branches from the base; stems are slightly sticky and fleshy Leaves: opposite, thread-like, forming 6-8-leaved “whorls” Flowers: 5 white petals 5 or 10 stamen 5 styles Fruit: 5 chambered capsule (at maturity it turns to the ground and opens, releasing seeds) Boreal South-coastal Cultivated or disturbed land Carnation or Pink family (Caryophyllaceae) Slide11:  Prostrate knotweed Polygonum aviculare Annual Trailing/ascending plant Leaves: elliptic to oblong, blue-green, stalkless Flowers: tiny, greenish, stalkless Fruits: dull Disturbed mineral soils South-Coastal Interior-Boreal Arctic Near settlements and along roadsides Knotweed family (Polygonaceae) Japanese knotweed Polygonum cuspidatum Perennial Long, creeping rhizomes Leaves: alternate, broadly ovate with truncate base Flowers: female-only and male-only plants (dioecious) clustered in branched, lax inflorescences White-pink petals; sepals as long or longer than petals Populations established in Tongass National Forest Near water sources, waste places, utility rights of way, neglected gardens and around old homesites Slide12:  Black bindweed Polygonum convolvulus Annual Vine/Twining stem Flowers greyish-whitish Fruiting calyx not winged NB: This species can be confused with Convolvulus arvensis. When not in flower, Polygunum convolvulus can be identified by the presence of leaf tips and of a papery sheath at each leaf node Interior-Boreal Arctic-Alpine South-coastal Waste ground, disturbed sites, open woods, roadsides, railroads. Knotweed family (Polygonaceae) Convolvulus arvensis: sheath absent Polygonum convolvulus vs. Convolvulus arvensis: distinctive vegetative traits Slide13:  Knotweed family (Polygonaceae) Perennial Basal leaves hastate. Upper leaves are also hastate. Flowers reddish-yellowish, forming a loose inflorescence. Male and female flowers on separate plants Fruit: Valves easily separable from nut South-Coastal Interior-Boreal Roadsides, cultivated lands, waste places Common sheep sorrel Rumex acetosella var. acetosella Fruit: valves do not separate easily from nut South-Coastal Roadsides, cultivated lands, waste places Common sheep sorrel Rumex acetosella var. angiocarpus Slide14:  Knotweed family (Polygonaceae) Perennial Basal leaves are not hastate Leaves lanceolate, with distinct wavy margins and blunt-tipped Flowers: Inflorescence is dense South-coastal Interior-boreal Especially common in prairies and parkland Curly dock Rumex crispus Slide15:  Rose family (Rosaceae) Grayish green smooth bark Leaves: alternate, pinnately compound, 11-15 leaflets per leaf Flowers: clusters with many, small white flowers Fruits: bright, deep orange pomes Distinctive trait: native Sorbus species are shrubs, whereas the European mountain ash are trees. Not suited for interior Alaska Occurs throughout most moist cool regions of North America European mountain ash Sorbus aucuparia European bird cherry Prunus padus Small tree with purple-grayish bark Leaves: long-stalked, obovate, margins sharply serrate Flowers: whitish, clustered in long, showy, terminal spikes Fruits: black, ovoid Distinctive traits: this species can be distinguished from its native relatives by its long, cylindrical floral spikes South-Coastal Often cultivated ornamental in Southern Alaska Slide16:  Rose family (Rosaceae) Staghorn cinquefoil Potentilla multifida Plants with basal rosettes with pinnate leaves Leaves: green or greyish green above, white-tomentose beneath, odd-pinnately compound; 5-7 leaflets per leaf, dissected into narrow segments with revolute margins Flowers: yellow, petals longer than calyx, arranged in cymes Interior-Boreal South Coastal NATIVE Dry slopes, gravel bars, scree slopes, open ground Slide17:  Plantain family (Plantaginaceae) Broadleaf plantain/Great plantain/Buckhorn plantain Plantago major var. major Annual, biennial or perennial Hairless plant Leaves: heart-shaped, strongly 3 to 5-ribbed, margins smooth; arranged in a basal rosette Flowers: small, greenish-whitish that fade to brown, clustered in spikes Fruit: ovate capsule that splits around the middle; >6 seeds/capsule Distinctive trait: broad, nearly hairless leaves > 6seeds per capsule South coastal Interior boreal Arctic-alpine Cultivated fields, lawns, roadsides, waste areas. Also found in open woods and valleys, and in mid-montane sites Slide18:  Buttercup family (Ranunculaceae) Creeping buttercup Ranunculus repens Tall buttercup Ranunculus acris Perennial Decumbent vegetative stems; erect floral stems Leaves: basal leaves are egg-shaped, have light-colored spots and are 3-foliolate with toothed margins Flowers: few, showy flowers; 5(-9) bright yellow petals Seeds: round and flattened, with short backward turned beak Distinctive features: horizontal growth habit creeping stems that root at the nodes spherical head of achenes and long petals South Coastal Interior-Boreal Arctic-Alpine Disturbed soils including gardens, croplands, semi-aquatic communities (swamps, margins of ponds and rivers and ditches) Biennial or short-lived perennial Erect stems Leaves: basal leaves coarsely divided into 3-7 lobed segments; soft hairs present on both sides Flowers: long stalked, 5 shiny golden petals and 5 sepals Seeds: disc-shaped, reddish-brown with a short hook South-coastal Grasslands, woodlands and occasionally, sand dune communities Slide19:  Iceland Poppy Papaver nudicaule Poppy family (Papaveraceae) Perennial Stems leafless; plants >25cm tall Leaves: pinnately compound, 2-3 pairs of broadly rounded leaflets, margins entire or toothed Petioles nearly glabrous Flowers yellow, red or white Capsule: club-shaped, with many rays South-coastal Boreal Meadows Slide20:  Mint family (Lamiaceae) Split-lip hemp-nettle Galeopsis tetrahit var. bifida Annual Erect stem, swollen below leaf nodes Leaves: opposite, lanceolate, sparsely hairy on both sides Flowers: terminal or axillary inflorescences purple, pink or white flowers Lower lip split, with rounded lobes Calyx has five nearly equal lobes Well-developed bracts subtending axillary inflorescences Seeds: egg-shaped, mottled grayish brown Distinctive traits: Calyx with 5 nearly equal lobes Well developed bracteal leaves in floral axes Rounded lobes of lower lip petal Interior-Boreal Arctic-Alpine South-Coastal Disturbed sites, roadsides, gardens and agricultural lands Slide21:  Figwort/Fox-glove family (Scrophulariaceae) Erect plant Leaves: long narrow, bluish-green Flowers: many, small, snapdragon-like flowers arranged in spikes light yellow with orange throat long, straight spurs nearly as long as the corolla Distinctive traits: there are no other Alaska native, yellow and spurred Scrophulariaceae Interior-Boreal South-Coastal Roadsides and waste places Butter and Eggs/Toadflax Linaria vulgaris Foxglove Digitalis purpurea Tall stem, upper part hairy Leaves: ovate, with winged stalk Flowers: pinkish to purple with purple spots, pubescent within South-Coastal Roadsides, disturbed areas, moist meadows, open woodlands and pastures

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