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|Family: Asteraceae (Compositae)||View Description||Dichotomous Key|
|Genus: Gamochaeta||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Gamochaeta ustulata (Nutt.) Holub
Habit: Annual to biennial or short-lived perennial herb, fibrous-rooted. Stem: erect to ascending, 10--40 cm, generally decumbent-ascending and stolon-like, white, densely felty-tomentose. Leaf: basal and cauline, basal generally withering before flower, 2--5 cm, 6--12(35) mm wide, spoon-shaped to oblanceolate, faces contrasting in color, adaxially +- sparsely cobwebby-tomentose, abaxially white, felty-tomentose. Inflorescence: head clusters 1--6(8+) cm, 12--18 mm wide (pressed), +- cylindric, in age generally continuous, if interrupted then only basally; involucre 4.5--5 mm, urn-shaped, base embedded in woolly hairs, often sparsely cobwebby on proximal 1/5--1/2; phyllaries in 4--6 series, outer widely ovate-triangular, +- 1/2 × inner, acute to acuminate, brown or +- green-brown, mid phyllaries +- keeled near tip, inner oblong, flattened, rounded to obtuse, abruptly pointed, generally dark brown, sometimes proximally +- purple. Pistillate Flower: corolla generally +- yellow, sometimes +- purple-tipped. Disk Flower: (3)4--6; corolla generally +- yellow, sometimes +- purple-tipped. Fruit: 0.7--0.8 mm.
Ecology: Dunes, bluffs, fields, disturbed sites; Elevation: < 650(1050) m. Bioregional Distribution: NW, c SNF, SnJV, w CW, SCoRO, SCo, ChI, PR; Distribution Outside California: to British Columbia. Flowering Time: Apr--Jul
eFlora Treatment Author: Guy L. Nesom & Thomas J. Rosatti
Jepson Online Interchange
Previous taxon: Gamochaeta stagnalis
Next taxon: Gazania
Citation for this treatment: Guy L. Nesom & Thomas J. Rosatti 2016. Gamochaeta ustulata, Revision 1, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=3048, accessed on September 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on September 29, 2016.