Rhinotropis lindheimeri
Rhinotropis lindheimeri var. lindheimeri
shrubby milkwort
decumbent to erect, usually pubescent, rarely glabrous, hairs spreading or incurved.
usually pubescent, rarely glabrous, hairs strictly or irregularly spreading, rarely ± crisped, sparse to dense, mostly 0.3–0.5 mm.
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.
blades elliptic, ovate, or obovate proximally, becoming narrowly so to nearly lanceolate distally, mostly 7–20(–27) × 3–10(–18) mm, venation usually prominently and firmly reticulate, occasionally obscure, surfaces with pubescence similar to stems, or hairs slightly longer.
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.
sacs glabrous or with scattered, spreading hairs proximally, hairs not incurved in distal 1/2.
= 18.
Rhinotropis lindheimeri
Rhinotropis lindheimeri var. 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.)
Variety lindheimeri occurs in central, southern, and southwestern Texas in over 25 counties.
(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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