Hoffmannseggia glauca
Hoffmannseggia microphylla
hoffmanseggia, hog potato, Indian rushpea, pig-nut
wand holdback
38–150 ×13–42 mm;
stipules ovate, 1.5–4 × 1.5–3 mm, ciliate;
pinnae 4–13;
leaflets 7–27 per pinna, blades obtuse-ovate, 2–6 × 1–4.5 mm, surfaces strigose abaxially, glabrous adaxially.
20–50 × 9–26 mm;
stipules linear-lanceolate, 0.5–1.5 × 0.2–0.5 mm, margins fringed;
pinnae 3, terminal longer than laterals;
leaflets 9–23 per pinna, blades oblong to elliptic, 1.5–3.5 × 1–2 mm, surfaces sparsely to densely villous or strigose abaxially, glabrous or sparsely villous adaxially.
4–15-flowered, terminal, 5–23 cm;
rachis and pedicels puberulent to strigose and stipitate-glandular.
10–27-flowered, terminal or axillary, 9–16 cm;
rachis and pedicels strigose and, sometimes, sparsely stipitate-glandular.
turning downward, broadly flared, 10–16 × 10–18 mm;
calyx persistent, densely pubescent abaxially, with multicellular, glandular trichomes;
banner yellow, drying pink with red markings, 5–14 × 5 mm, conspicuous multicellular, glandular trichomes on claw and abaxial surface, with few hairs at base of folded claw adaxially;
lateral petals bright yellow, 13 × 6 mm, with multicellular, glandular trichomes on claw margins and base abaxially.
remaining upright, openly flared, 12–15 × 6–12 mm;
calyx jaggedly dehiscent before fruiting, distinct portion 4–12 × 5–8 mm, strigose, sometimes also stipitate-glandular;
banner yellow and basally with red markings, 5–10 × 4–7 mm, with short, round glandular trichomes abaxially, tuft of trichomes at base of claw adaxially;
lateral petals yellow, 5–10 × 3–5 mm, with glandular trichomes abaxially.
tan, rectangular to arcuate, sometimes expanded near apex, 20–40 × 5–8 mm, indehiscent, margins ± parallel, obscure, apex obtuse to acute;
valves flat, sparsely tomentose, with a few scattered multicellular, glandular trichomes appearing as brown dots.
falcate to lunate in outline, 18–23 × 5–8 mm, dehiscent, margins slightly raised, shortly villous, apex acute to mucronate;
valves flaring outward, sometimes each spirally twisted around itself, with jagged ring at base where sepals dehisced, puberulent and stipitate-glandular.
1–10.
3–6.
= 24.
= 24.
Hoffmannseggia glauca
Hoffmannseggia microphylla
Hoffmannseggia glauca is considered a noxious weed in agricultural and pasture lands of the middle and southwestern United States, spreading aggressively by tuberous roots. While it is possible that it was introduced into North America by humans, historical use of the tubers by indigenous people in the American Southwest indicates a long association and, perhaps, natural long-distance dispersal from South America.
Hoffmannseggia falcaria Cavanilles, an illegitimate and superfluous name, pertains here.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
In California, Hoffmannseggia microphylla occurs in Imperial, Inyo, Riverside, San Bernardino, and San Diego counties.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
KS Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
