Isocoma menziesii
Isocoma menziesii is a species of flowering plant in the family Asteraceae, known by the common name Menzies' goldenbush.
Isocoma menziesii | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Genus: | Isocoma |
Species: | I. menziesii |
Binomial name | |
Isocoma menziesii | |
Synonyms[1] | |
Synonymy
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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
- The Plant List, Isocoma menziesii (Hook. & Arn.) G.L.Nesom
- Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114 includes distribution map on page 72
- Flora of North America Editorial Committee (ed.). "Isocoma menziesii". Flora of North America North of Mexico (FNA). New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
External links
Media related to Isocoma menziesii at Wikimedia Commons
- Jepson Manual Treatment of Isocoma menziesii
- Isocoma menziesii — Calphotos Photos gallery, University of California