Biology:Isocoma menziesii
| Isocoma menziesii | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Isocoma |
| Species: | I. menziesii
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| Binomial name | |
| Isocoma menziesii (Hook. & Arn.) G.L.Nesom 1991
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| Synonyms[1] | |
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Synonymy
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Isocoma menziesii is a species of flowering plant in the family Asteraceae, known by the common name Menzies' goldenbush.
It is native to California , Baja California, and Baja California Sur, where it grows in coastal and inland habitat such as chaparral, particularly in sandy soils.[2]
Description
Isocoma menziesii is a subshrub forming a matted bush reaching heights of 1–2 m (39–79 in). The erect branching stems may be hairless to woolly, are generally glandular, and vary in color from gray-green to reddish brown.[3]
The leaves are oval-shaped to somewhat rectangular, gray-green and sometimes hairy and glandular, and 1–5 cm (0.39–1.97 in) long with stumpy teeth along the edges.[3]
The abundant inflorescences are clusters of thick flower heads. Each head is a capsule with layers of thick, pointed, greenish phyllaries. The head is filled with large, protruding, cylindrical yellow disc florets with long stigmas.[3]
Varieties
- Isocoma menziesii var. decumbens (Greene) G.L.Nesom – far northern Baja California, San Diego County, Channel Islands
- Isocoma menziesii var. diabolica G. L. Nesom – Santa Clara + San Benito Counties
- Isocoma menziesii var. menziesii – Baja California, Baja California Sur, San Diego County, Orange County, western Riverside County, Channel Islands
- Isocoma menziesii var. sedoides (Greene) G.L.Nesom – from Orange to San Luis Obispo Counties including Channel Islands
- Isocoma menziesii var. tridentata (Greene) G.L.Nesom – southern Baja California including Isla Cedros, northern Baja California Sur
- Isocoma menziesii var. vernonioides (Nutt.) G.L.Nesom – from Monterey County to northern Baja California[2][1][3]
References
- ↑ 1.0 1.1 The Plant List, Isocoma menziesii (Hook. & Arn.) G.L.Nesom
- ↑ 2.0 2.1 Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114 includes distribution map on page 72
- ↑ 3.0 3.1 3.2 3.3 Flora of North America Editorial Committee, ed., "Isocoma menziesii", Flora of North America North of Mexico (FNA), New York and Oxford, http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067013
External links
- Jepson Manual Treatment of Isocoma menziesii
- Isocoma menziesii — Calphotos Photos gallery, University of California
Wikidata ☰ Q6085517 entry
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