Eremogone macradenia
Eremogone aberrans
desert sandwort, Mohave sandwort, Mojave or desert sandwort, Mojave sandwort
Mount Dellanbaugh sandwort
erect, (10–)20–40(–70) cm, glabrous to stipitate-glandular.
erect, (3–)10–23 cm, moderately to densely stipitate-glandular.
basal leaves sparse or absent;
cauline leaves usually in 5–12+ pairs, not significantly reduced;
basal blades ascending to arcuate-spreading or recurved, needlelike or narrowly linear, (0.7–)2–6(–7) cm × 0.8–2 mm, ± rigid, herbaceous to subsucculent, apex blunt to spinose, glabrous, not glaucous.
basal leaves abundant, persistent;
cauline leaves in 5–7 pairs, reduced distally;
basal blades spreading to arcuate-spreading, needlelike, 0.8–2 cm × 0.4–0.8 mm, ± rigid, not fleshy, herbaceous, apex spinose, glabrous, not glaucous.
3–20(–30)-flowered, ± compact cymes;
branches ascending to erect.
(1–)3–6-flowered, open cymes.
3–45 mm, glabrous or stipitate-glandular.
6–25 mm, stipitate-glandular.
sepals 1–3-veined, ovate to lanceolate or elliptic, 4.5–7.2 mm, to 8 mm in fruit, margins narrow to broad, apex acute to acuminate, glabrous to sparsely stipitate-glandular;
petals white or yellowish, oblanceolate to spatulate, 6–11 mm, 1–2 times as long as sepals, apex entire or erose;
nectaries thickened, molarlike, apically 2-lobed, 1–1.5 mm, or narrowly longitudinally rectangular, truncate, 0.7–0.8 mm, densely minutely pubescent with erect to spreading hairs.
sepals 1–3-veined, lateral veins less developed, narrowly elliptic to ovate, 3.5–4 mm, 4.8–5.2 mm in fruit, margins usually broadly winged, scarious, apex broadly acute to obtuse (at least in fruit), glabrous or nearly so;
petals yellowish white, spatulate, 5.8–10 mm, 1.3–1.5 times as long as sepals, apex rounded;
nectaries as lateral and abaxial rounding of base of filaments opposite sepals, 0.2–0.3 mm.
6–8 mm, glabrous.
7–10 mm, glabrous.
greenish or reddish brown to blackish, suborbicular to pyriform or ovoid, 1.3–3.2 mm, tuberculate, sometimes echinate on abaxial ridge;
tubercles low, rounded to conic.
brownish black, suborbicular with hilar notch, 2–2.4 mm, tuberculate;
tubercles rounded, elongate.
Eremogone macradenia
Eremogone aberrans
Varieties 2 (2 in the flora).
Eremogone macradenia is in the Center for Plant Conservation’s National Collection of Endangered Plants.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eremogone aberrans is known only from northern Arizona and resembles a robust form of the more northerly occurring E. aculeata. In Arizona it is often confused with E. fendleri, which has sepals more or less glandular-pubescent whereas E. aberrans has sepals glabrous or with a few glandular hairs at their bases.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Cauline leaves mostly in 5-8 pairs, blade ± ascending throughout, 0.8-1.2 mm wide | var. macradenia |
1. Cauline leaves mostly in 6-12+ pairs, blade curved downward, especially proximal ones, 1.2-2 mm wide | var. arcuifolia |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
