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Photo is of parent taxon
Stems

usually pubescent, rarely glabrous, hairs strictly or irregularly spreading, rarely ± crisped, sparse to dense, mostly 0.3–0.5 mm.

Leaf

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.

Keel

sacs glabrous or with scattered, spreading hairs proximally, hairs not incurved in distal 1/2.

2n

= 18.

Rhinotropis lindheimeri var. lindheimeri

Phenology Flowering spring–fall (year-round).
Habitat Limestone or caliche, sandstone, shale, infrequently on gypsum, granite, or igneous substrates on ridge tops, slopes, roadcuts, canyons in juniper-oak woodlands, grassland, thorn scrub, desert scrub, canyon brush.
Elevation 90–1600 m. (300–5200 ft.)
Distribution
from FNA
TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, Tamaulipas)
[BONAP county map]
Discussion

Variety lindheimeri occurs in central, southern, and southwestern Texas in over 25 counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 10.
Parent taxa Polygalaceae > Rhinotropis > Rhinotropis lindheimeri
Sibling taxa
R. lindheimeri var. parvifolia
Name authority unknown
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