Flora of North America species comparison

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Dalea albiflora

Dalea multiflora

whiteflower prairie clover

roundhead prairie clover
Stems

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

3–8 dm, glandular-punctate.
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, densely flowered, nearly globose, inconspicuously involucrate (lowest bracts not subtending flowers), 7–9 mm diam.;

axis not visible, 0.4–1(–1.2) cm;

bracts early deciduous or proximals persistent, interfloral ones held in place by crowded flowers, 2–2.4 mm.
Peduncles

0.5–8.5 cm.

(0–)0.5–3(–7) cm.
Stamens

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

5, (5–)5.2–7.6 mm, filaments distinct to 2.5–4.5 mm, anthers 0.7–1.2 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.

white;

not conventionally papilionaceous;

banner (4–)4.2–5.7 mm, blade deltate-obovate, 2.3–3.4 × 2.4–3.7(–4.2) mm; epistemonous petals attached at separation of filaments, blades 2.3–3.5 × 1.5–2.1 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, (2.9–)3–4.2(–4.4) mm, glabrous, lobes ciliolate;

tube 1.6–2.6 mm, not deeply recessed opposite banner, with 1(–3) small blister glands between ribs, lobes lanceolate to triangular, ± unequal, abaxial pair longest.
Legumes

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

2.5–3 mm, glabrate, with ± prominent elongated glands on sides.
Seeds

1.6–2 mm.

1.6–2 mm.
Perennial

herbs, erect, ± silky-villosulous.

herbs, erect to spreading, glabrous.
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 or 11(or 13), blades oblong to elliptic-oblanceolate, or linear-oblong, 7–13 mm.
2n

= 14, 24.

Dalea albiflora

Dalea multiflora
Phenology Flowering fall (spring–summer). Flowering late spring–early fall.
Habitat Open woodlands, grasslands, roadsides. Prairies, rocky hills.
Elevation 1000–2300 m. (3300–7500 ft.) 0–700 m. (0–2300 ft.)
Distribution
from FNA
AZ; NM; Mexico (Chihuahua, Durango, Sinaloa, Sonora)
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; KS; MO; NE; OK; TX
[WildflowerSearch map]
[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 multiflora shows considerable geographic variation in stature. Its floral structure is similar to that of D. candida var. candida, and individuals intermediate between the two species occur (R. C. Barneby 1977c). In Texas, D. multiflora is known from the eastern two-thirds of the state.

(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. 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 D. ordiae Petalostemon multiflorus, Kuhnistera multiflora
Name authority A. Gray: Smithsonian Contr. Knowl. 5(6): 38. (1853) (Nuttall) Shinners: Field & Lab. 17: 82. (1949)
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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