Английская Википедия:Agoseris heterophylla
Шаблон:Short description Шаблон:Speciesbox
Agoseris heterophylla is a liguliferous species in the family Asteraceae known by the common name annual agoseris or mountain dandelion. It is widespread in mostly drier regions of western North America from British Columbia to Baja California.[1][2][3][4][5]
Description
This is an annual herb producing a basal rosette of leaves. The oblanceolate leaves may be toothed, pinnatifid, or entire, and no larger than 15 cm long and 1.5 cm wide. Often there is no stem, or a short, rudimentary stem may develop, although the plant will produce several stem-like peduncles. Each solitary flower head contains one or two rows of sharp-pointed bracts, often with purplish hairs; and a corolla of yellow ray florets, but no disc florets. The fruit is an achene which can be highly variable but typically has a long beak and a terminal pappus of white bristles.[1][6] Flowers bloom March to September.[7]
- Varieties[1]
- Agoseris heterophylla var. cryptopleura - California
- Agoseris heterophylla var. heterophylla - British Columbia to Baja California (including Guadalupe Island)
- Agoseris heterophylla var. quentinii - Arizona, New Mexico
References
External links
- Шаблон:Commons-inline
- Calflora Database: Agoseris heterophylla (Annual agoseris, Annual mountain dandelion)
- USDA Plants Profile
- Calphotos Photo gallery, University of California
- Jepson Manual Treatment
- ↑ 1,0 1,1 1,2 Flora of North America, Agoseris heterophylla
- ↑ E-flora BC, electronic Atlas of the Flora of British Columbia
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Calflora taxon report, University of California, Agoseris heterophylla (Nutt.) E. Greene Annual mountain dandelion, annual agoseris, mountain dandelion
- ↑ Shreve, F. & I. L. Wiggins. 1964. Vegetation and Flora of the Sonoran Desert. 2 vols. Stanford University Press, Stanford.
- ↑ Jepson Manual Treatment
- ↑ Шаблон:Cite web
- Английская Википедия
- Agoseris
- Flora of the Northwestern United States
- Flora of the Southwestern United States
- Flora of British Columbia
- Flora of California
- Flora of New Mexico
- Flora of the Cascade Range
- Flora of the Sierra Nevada (United States)
- Flora of Baja California
- Flora of Mexican Pacific Islands
- Natural history of the California chaparral and woodlands
- Natural history of the California Coast Ranges
- Natural history of the Transverse Ranges
- Plants described in 1841
- Taxa named by Edward Lee Greene
- Taxa named by Thomas Nuttall
- Flora without expected TNC conservation status
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