|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Annual to trees, some dioecious
Stem: nodes often swollen
Leaves simple, basal or cauline, alternate, opposite, or whorled, generally entire; stipules 0 or obvious and fused into a generally scarious sheath around stem
Inflorescence: small cluster, axillary or arrayed in cymes or panicles; involucres sometimes subtending 1many flowers
Flower generally bisexual, small, ± radial; perianth generally 56-lobed, base ± tapered, often jointed to pedicel; stamens 29, often in 2 whorls; ovary superior, styles generally 3, generally fused at base
Fruit: achene, generally enclosed by persistent perianth, generally 3-angled, ovoid, and glabrous
Genera in family: 50 genera, 1100 species: worldwide, especially n temp; some cultivated for food (Fagopyrum ; Rheum , rhubarb; Rumex , sorrel) or ornamental (Antigonon , coral-vine; Muehlenbeckia ; Polygonum )
Reference: [Ronse Decraene & Akeroyd 1988 Bot J Linn Soc 98:321371; Reveal et al. 1989 Phytologia 66(24):83414]
Treatments of the 15 eriogonoid genera are based on the monographic work of James L. Reveal, who is gratefully acknowledged.
Species in genus: 1 sp
Etymology: (Mary C. DeDecker, eastern CA botanist, 19092000)
Reference: [Reveal & Howell 1976 Brittonia 28:245251]
Shrub, 210 dm, 520 dm diam, minutely hairySee the CNPS Inventory for information about endangerment and rarity.
Leaves cauline; stipule 0; petiole 25 mm; blade 715 mm, oblanceolate
Inflorescence 18 cm; bracts 25 per node, free; most nodes with 1 ± sessile flower and 1several branches; branches and bracts reduced and flowers more per node upward; true involucre 0
Flower: perianth generally 24 mm, yellowish, lobes 6; stamens 9
Fruit 23.5 mm, light reddish brown, puberulent at tip
Ecology: Limestone outcrops
Elevation: 12202200 m.
Bioregional distribution: White and Inyo Mountains, Desert Mountains (Last Chance, Panamint mtns).