This rhizomatous perennial herb grows up to about 37 centimeters tall. Leaves along the stem are somewhat oval in shape and up to 6 centimeters long. The inflorescence has clusters of flower heads each up to about a centimeter long. Each contains white or off-white disc florets and usually a few white ray florets.[4][5]
This species grows in grassland habitat which is generally dominated by Idaho fescue (Festuca idahoensis). It grows in gravelly soils originating from glacier activity in the northern part of its range, and clay soils farther south. The soils are moist most of the year but dry in the summer. Associated species include snowberry (Symphoricarpos albus), serviceberry (Amelanchier alnifolia), Oregon sunshine (Eriophyllum lanatum) and early blue violet (Viola adunca). Much of the habitat is also covered with introduced species such as Scot's broom (Cytisus scoparius) and yellow hairgrass (Aira praecox).[1][3]
The invasion of the habitat by introduced species is a threat to this plant. Other threats include loss of habitat to development, off-road vehicles, military activity, and fire suppression.[1]
Referencesedit
^ abcdSericocarpus rigidus. The Nature Conservancy.
^USDA, NRCS (n.d.). "Sericocarpus rigidus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 10 November 2015.
^ abSericocarpus rigidus. 2011-10-26 at the Wayback Machine Center for Plant Conservation.
sericocarpus, rigidus, species, flowering, plant, family, asteraceae, known, common, name, columbian, whitetop, aster, native, pacific, northwest, north, america, where, known, from, southern, vancouver, island, british, columbia, south, along, coast, washingt. Sericocarpus rigidus is a species of flowering plant in the family Asteraceae known by the common name Columbian whitetop aster 2 It is native to the Pacific Northwest of North America where it is known from southern Vancouver Island in British Columbia south along the coast to Washington and Oregon 1 3 Sericocarpus rigidus Conservation status Vulnerable NatureServe 1 Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Clade Asterids Order Asterales Family Asteraceae Genus Sericocarpus Species S rigidus Binomial name Sericocarpus rigidusLindl Synonyms Aster curtus This rhizomatous perennial herb grows up to about 37 centimeters tall Leaves along the stem are somewhat oval in shape and up to 6 centimeters long The inflorescence has clusters of flower heads each up to about a centimeter long Each contains white or off white disc florets and usually a few white ray florets 4 5 This species grows in grassland habitat which is generally dominated by Idaho fescue Festuca idahoensis It grows in gravelly soils originating from glacier activity in the northern part of its range and clay soils farther south The soils are moist most of the year but dry in the summer Associated species include snowberry Symphoricarpos albus serviceberry Amelanchier alnifolia Oregon sunshine Eriophyllum lanatum and early blue violet Viola adunca Much of the habitat is also covered with introduced species such as Scot s broom Cytisus scoparius and yellow hairgrass Aira praecox 1 3 The invasion of the habitat by introduced species is a threat to this plant Other threats include loss of habitat to development off road vehicles military activity and fire suppression 1 References edit a b c d Sericocarpus rigidus The Nature Conservancy USDA NRCS n d Sericocarpus rigidus The PLANTS Database plants usda gov Greensboro North Carolina National Plant Data Team Retrieved 10 November 2015 a b Sericocarpus rigidus Archived 2011 10 26 at the Wayback Machine Center for Plant Conservation Sericocarpus rigidus Flora of North America Sericocarpus rigidus Washington Burke Museum Retrieved from https en wikipedia org w index php title Sericocarpus rigidus amp oldid 1196013580, wikipedia, wiki, book, books, library,
