Rhinotropis lindheimeri
shrubby milkwort
decumbent to erect, usually pubescent, rarely glabrous, hairs spreading or incurved.
subsessile to petiolate, petiole to 1(–1.5) mm;
blade elliptic to linear, lanceolate, ovate, obovate, or scalelike, (3–)4–41 × (0.5–)1–12(–18) mm, base rounded to cuneate, apex obtuse to rounded, surfaces pubescent or glabrous, hairs incurved or spreading.
terminal, usually leaf-opposed, often also from near base of plant, these usually with chasmogamous flowers, occasionally bearing reduced, beakless cleistogamous or semi-cleistogamous flowers, rarely with cleistogamous or semi-cleistogamous flowers throughout, 1–12(–15) × 0.3–1.5 cm;
rachis not thorn-tipped;
peduncle 0–1 cm;
bracts usually persistent, ovate, lanceolate, or elliptic.
1–4.5 mm, pubescent.
usually pink to purple, rarely white, keel yellowish distally, wings pink or rose, (3.7–)4–7.4(–7.7) mm;
upper sepal persistent, other sepals deciduous, upper sepal ovate, 1.7–4.5(–5.2) mm, lower sepals lanceolate to obovate, (1.3–)1.6–3.5(–3.8) mm, pubescent or glabrous;
wings obovate to oblong-obovate, 3–6.4(–7.2) × (1.2–)1.4–3.2 mm, glabrous or pubescent;
keel (2.7–)3.1–6.2 mm, sac glabrous or with scattered hairs, beak linear (or bluntly rounded), (0–)0.5–2 × (0–)0.2–0.6 mm, glabrous or pubescent.
ellipsoid, oblong, slightly ovoid, or obovoid, 3.3–6(–6.8) × 2–4 mm, base rounded to subtruncate, often oblique, margins with narrow wing or not winged, usually pubescent, rarely subglabrous.
2.8–4.3 mm, pubescent;
aril 0.7–2.5 mm, lobes to 3/4 length of seed.
Rhinotropis lindheimeri
Varieties 3 (2 in the flora).
Variety eucosma (S. F. Blake) T. Wendt is known from northern Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems usually with spreading hairs, hairs rarely somewhat crisped, mostly 0.3–0.5 mm; leaf blades usually elliptic, ovate, or obovate proximally, distally becoming narrowly so, venation usually prominently reticulate, surfaces pubescent (not glabrous); keel sacs glabrous or with scattered, spreading hairs proximally, hairs not incurved in distal 1/2. | var. lindheimeri |
1. Stems usually with incurved hairs, hairs rarely irregularly spreading, 0.07–0.15 mm, rarely glabrous; leaf blades lanceolate, linear, or scalelike to elliptic, ovate, or obovate, venation usually not prominently reticulate (usually midvein prominent abaxially, occasionally reticulate), surfaces pubescent or glabrous; keel sacs glabrous or, rarely, with incurved hairs in distal 1/2. | var. parvifolia |
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