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golden-carpet

Habit Herbs, annual; taproot slender.
Stems

arising directly from the root, spreading to decumbent or prostrate, solid, not fistulose or disarticulating into ringlike segments, glabrous or sparsely pubescent.

Leaves

quickly deciduous, basal and cauline, in whorls of 3;

petiole present only at proximal nodes;

blade oblong to broadly elliptic or obovate, margins entire.

Inflorescences

terminal, cymose;

branches mostly dichotomous, not brittle or disarticulating into segments, round, glabrous or sparsely pubescent;

bracts absent.

Peduncles

absent.

Flowers

3–9 per node at any single time during full anthesis;

perianth yellow, broadly campanulate when open, narrowly urceolate when closed, thinly pubescent abaxially;

tepals 6, connate proximally, monomorphic, entire apically;

stamens 9;

filaments basally adnate, pilose basally;

anthers yellow, ovate.

Achenes

included, brown, not winged, 3-gonous, glabrous.

Seeds

embryo curved.

Involucral

bracts absent.

Gilmania

Distribution
from FNA
CA
[BONAP county map]
Discussion

Species 1.

Gilmania is restricted to the valley edges and low mountains surrounding Death Valley in Inyo County. In a “good” year, tens of millions of plants carpet the area, giving the edge of the valley a ring of golden yellow. Each individual produces thousands of flowers, and seed set in the plush years is enormous, thereby assuring long-term survival even in this harsh environment. The genus is allied to Eriogonum subg. Ganysma.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 5, p. 433. Author: James L. Reveal.
Parent taxa Polygonaceae > subfam. Eriogonoideae
Subordinate taxa
G. luteola
Synonyms Phyllogonum
Name authority Coville: J. Wash. Acad. Sci. 26: 210. (1936)
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