Flora of North America species comparison

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Dalea albiflora

Dalea reverchonii

whiteflower prairie clover

Comanche Peak prairie clover
Stems

(2–)2.5–5(–7) dm, sparsely gland-dotted distally.

1.5–2 dm, eglandular.
Inflorescences

spikes, densely flowered, not involucrate, 7–10 mm diam.;

axis not visible, (1–)1.5–6(–7) cm;

bracts early deciduous to persistent, 1.5–3.2 mm.

spikes, loosely flowered, not involucrate, 8–10 mm diam.;

axis visible, 1.5–5 cm;

bracts deciduous, 2.5 mm.
Peduncles

0.5–8.5 cm.

0–1 cm.
Stamens

10, (5–)6–8 mm, filaments distinct to 3.5–4.5 mm, anthers 0.4–0.6 mm.

5, 6.1–7.2 mm, filaments distinct to 3.3–4 mm, anthers 0.7–0.9 mm.
Corollas

white;

not conventionally papilionaceous;

banner plane, (4.4–)5–6.4 mm, blade oblong-ovate, not peltate, proximally cordate to cuneate, (2.6–)3–4 × (2–)2.2–3.4 mm; epistemonous petals attached high on stamen tube, just proximal to separation of filaments, blades (2.7–)3.1–4.4 × (0.8–)1.3–1.9(–2.2) mm.

magenta-purple;

not conventionally papilionaceous;

banner 4.3–4.6 mm, blade ovate to elliptic, 2.1–2.3 × 1.8–2 mm; epistemonous petals attached at separation of filaments, blades 2.6–3 × 1.1–1.3 mm.
Calyces

asymmetric, recessed opposite banner, (2.8–)3.2–5.1 mm, pilosulous;

tube (1.9–)2–3(–3.3) mm, with 3–6 glands between ribs, lobes triangular.

subsymmetric, 4.2–4.6 mm, silky-pilosulous to -tomentulose, hairs subappressed;

tube 1.9–2.1 mm, with ribs leading to sinuses stronger than those leading to lobes, tube appearing bluntly 5-angled, with 0 glands between ribs, lobes lanceolate-acuminate or adaxial pair triangular-acuminate.
Legumes

2.2–2.9 mm, villosulous distally and gland-dotted.

3.1–3.5 mm, pilosulous and gland-dotted distally.
Seeds

1.6–2 mm.

1.3 mm.
Perennial

herbs, erect, ± silky-villosulous.

herbs, decumbent, pilosulous.
Principal

leaves 1–4 cm;

leaflets (13–)17–35(–41), blades oblanceolate to linear-elliptic, (1.5–)2–7(–10) mm.

leaves 2–3 cm;

leaflets 7 or 9, blades linear-oblong or -oblanceolate, 5–12 mm.
2n

= 14, 24.

Dalea albiflora

Dalea reverchonii
Phenology Flowering fall (spring–summer). Flowering spring–early summer (fall).
Habitat Open woodlands, grasslands, roadsides. Rocky limestone soils.
Elevation 1000–2300 m. (3300–7500 ft.) ca. 400 m. (ca. 1300 ft.)
Distribution
from FNA
AZ; NM; Mexico (Chihuahua, Durango, Sinaloa, Sonora)
[WildflowerSearch map]
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

Dalea albiflora is a complex and variable species that could use further morphological and cytological studies. While herbarium specimens cannot be sorted into varieties in any consistent way, in the field, delicate plants with slender, creeping rootstocks may grow with, and appear quite distinct from, plants with a stout caudex; such plants have been called D. ordiae. There are few chromosome counts available; preliminary study suggests that the former plants are tetraploid and the latter diploid (D. E. Ward et al. 1993).

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

Dalea reverchonii occurs in Hood, Parker, and Wise counties in north-central Texas. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(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. 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. 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. 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. sabinalis, D. scandens, D. scariosa, D. searlsiae, D. tentaculoides, D. tenuifolia, D. tenuis, D. urceolata, D. versicolor, D. villosa, D. wrightii
Synonyms D. ordiae Petalostemon reverchonii
Name authority A. Gray: Smithsonian Contr. Knowl. 5(6): 38. (1853) (S. Watson) Shinners: Field & Lab. 17: 84. (1949) — (as reverchoni)
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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