The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

rose tickclover, Rose's ticktrefoil

Habit Herbs, annual; with slender taproot.
Stems

erect, usually striate, 10–50 cm, obscurely uncinate-puberulent or glabrescent.

Leaves

trifoliolate;

stipules persistent, patent, subulate or narrowly deltate (from broad base), 2–3 mm;

petiole 10–35 mm;

leaflet blades linear to narrowly oblong, apex obtuse, surfaces sparsely uncinate-puberulent;

terminal blade 20–70 × 2–5 mm, length 7+ times width.

Inflorescences

usually unbranched;

rachis sparsely patent uncinate-puberulent;

primary bracts usually persistent, subulate, patent, 1.5–4 mm.

Pedicels

15–20(–25) mm.

Flowers

calyx 1 mm, sparsely puberulent, tube 0.8–1 mm;

abaxial lobes 1 mm, lateral lobes 1 mm;

corolla pink or pink-purple, 3–3.5 mm.

Loments

margins sometimes slightly involute, sutures equally crenate;

connections central, 1/5 as broad as segments;

segments 2–4, rounded, 3–3.5 × 3 mm, rounded abaxially and adaxially, inconspicuously reticulate, glabrous;

stipe 1–1.5 mm.

Desmodium rosei

Phenology Flowering late summer–fall.
Habitat Dry, open woodlands, with yucca, desert shrubs, grasslands, pinyon-juniper woodlands, on ledges.
Elevation 1000–2400 m. (3300–7900 ft.)
Distribution
from FNA
AZ; NM; Mexico (Chihuahua, Sonora, Zacatecas)
[WildflowerSearch map]
[BONAP county map]
Discussion

Desmodium rosei is known in the flora area from southeastern Arizona and southwestern New Mexico.

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

Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Desmodium
Sibling taxa
D. arizonicum, D. batocaulon, D. canadense, D. canescens, D. cinerascens, D. cuspidatum, D. floridanum, D. grahamii, D. gramineum, D. illinoense, D. incanum, D. intortum, D. laevigatum, D. lindheimeri, D. lineatum, D. marilandicum, D. metcalfei, D. nuttallii, D. ochroleucum, D. paniculatum, D. procumbens, D. psilocarpum, D. psilophyllum, D. retinens, D. rotundifolium, D. scopulorum, D. scorpiurus, D. sessilifolium, D. strictum, D. tenuifolium, D. tortuosum, D. triflorum, D. tweedyi, D. viridiflorum, D. ×humifusum
Name authority B. G. Schubert: Contr. Gray Herb. 129: 22, plate 1, fig. A. (1940)
Web links