Flora of North America species comparison

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Dalea exserta

Dalea lachnostachys

Mexican prairie clover

glandleaf prairie clover
Stems

ribbed, (1.5–)5–10(–12) dm, glandular-verrucose distally.

1.5–4 dm, black-warty.
Inflorescences

spikes, relatively densely flowered, not involucrate, 13–16 mm diam.;

axis usually not visible, (1.5–)2–8 cm;

bracts deciduous by anthesis, (3–)4–8 mm.

racemes, spikelike, relatively densely flowered, not involucrate, (15–)16–19(–20) mm diam.;

axis usually not visible, 2.5–5 cm;

bracts deciduous, 7–11 mm.
Peduncles

(1–)2.5–14 cm.

1–8(–11) cm.
Stamens

8–10, (7.5–)8–11 mm, filaments distinct to 0.1–1.6 mm, anthers 0.4–0.5 mm.

10, 6.6–8.7 mm, filaments distinct to 2.3–2.9 mm, anthers (0.5–)0.6–0.8 mm.
Corollas

white, sometimes banner purplish in age;

not conventionally papilionaceous;

banner 4.9–7.3 mm, blade lanceolate-oblong to oblong-elliptic, 3–4.8 × 2.2–2.3 mm; epistemonous petals attached near or proximal to middle of stamen tube, blades somewhat unequal, laterals (2–)3.4–5 × 1–1.8 mm, abaxials 3–3.7 × 1.1–1.6 mm.

dark blue or blue-violet; papilionaceous;

banner 5.7–7.6 mm, blade shallowly cordate, (3.5–)3.8–4.8 × 2.2–3.8 mm; epistemonous petals attached well proximal to middle of stamen tube;

wings 3.7–5 × 1.3–1.8 mm;

keel connate by overlapping margins, blades (3.8–)4–4.7 × 1.7–2.2 mm.
Calyces

asymmetric, recessed opposite banner, 4.8–7 mm, glabrous;

tube (2.5–)2.7–3.8 mm, with 2–4(–8) large glands between ribs, lobes triangular-aristate.

± symmetric, (4.3–)5.8–7.7 mm, pilose;

tube 2.6–3.1 mm, with 3 or 4 small glands between ribs, lobes triangular-aristate.
Legumes

2.2–2.8 mm, pilosulous distally and dotted with small glands.

(3–)3.3–4 mm, pilosulous distally, eglandular.
Seeds

1.6–1.8(–2) mm.

1.8–2.4 mm.
Annual

herbs, erect, glabrous proximal to inflorescences.

Principal

leaves 3–10 cm;

leaflets 19–37, blades oblong-elliptic to oblanceolate, 2–9 mm.

leaves 3–8(–9.5) cm;

leaflets (5 or) 7 or 9 (or 11), blades obovate, (5–)7–17 mm, margins entire or ± crenulate, surfaces glandular-pustulate around margins abaxially.
Perennial

herbs, erect, ± pilosulous.
2n

= 14 (Mexico).

= 14.

Dalea exserta

Dalea lachnostachys
Phenology Flowering fall–spring. Flowering late summer–fall.
Habitat Openings in woods, disturbed ground. Open deserts, dry grass­lands, open woodlands, sometimes on limestone.
Elevation 1000–1200 m. (3300–3900 ft.) 1000–1800 m. (3300–5900 ft.)
Distribution
from FNA
AZ; Mexico; Central America
[BONAP county map]
from FNA
AZ; NM; TX; Mexico (Chihuahua, Coahuila, Sonora)
[BONAP county map]
Discussion

The existence of Dalea exserta in the flora area rests on specimens collected in 1939 by Goodding in Sycamore Canyon, near Ruby in Santa Cruz County. Because it is an annual that often grows in disturbed ground, it may be found again there or at some other locality in southern Arizona.

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

Dalea lachnostachys occurs in southern Arizona, southwestern New Mexico, and trans-Pecos Texas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Dalea Fabaceae > subfam. Faboideae > Dalea
Sibling taxa
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. jamesii, D. lachnostachys, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
D. albiflora, D. aurea, D. bartonii, D. bicolor, D. brachystachys, D. cahaba, D. candida, D. carnea, D. carthagenensis, D. compacta, D. cylindriceps, D. emarginata, D. enneandra, D. exigua, D. exserta, D. feayi, D. filiformis, D. flavescens, D. foliosa, D. formosa, D. frutescens, D. gattingeri, D. grayi, D. greggii, D. hallii, D. jamesii, D. lanata, D. laniceps, D. lasiathera, D. leporina, D. lumholtzii, D. mollis, D. mollissima, D. multiflora, D. nana, D. neomexicana, D. obovata, D. ornata, D. phleoides, D. pinnata, D. pogonathera, D. polygonoides, D. pringlei, D. pulchra, D. purpurea, D. reverchonii, D. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Synonyms Parosela exserta
Name authority (Rydberg) Gentry: Publ. Carnegie Inst. Wash. 527: 138. (1942) A. Gray: Smithsonian Contr. Knowl. 3(5): 46. (1852)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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