Plant Database

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Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume
Size Notes: "(2) 3-6 (8) dm tall." (bibref: 1812).
Leaf: "Leaf-spurs 0.5-1.2 mm long; stipules narrowly subulate or linear-lanceolate, 1-2.5 cm long, livid-castaneous and subglandular, becoming dry and fragile; intrapetlolular glands 2, minute; post-petiolular glands prominent, obtuse; leaves short-petiolate, the primary cauline ones 3-7 cm long, with 3-4 pairs of oblanceolate or oblong-elliptic, mostly acute or acuminate, sometimes obtuse and mucronulate, flat or loosely folded leaflets up to (1.2) 1.5-2.5 cm long, the terminal one stalked, longer than last pair, the spur-leaves similar but smaller." (bibref: 1812).
Flower: "Peduncles (0.3) 0.6-2 dm long; spikes very dense, conelike, when pressed 9-12 mm diam and presenting on each side 6-8 ranks of closely contiguous calyces, the pilose axis becoming (1.5) 2.5-16 cm long; bracts deciduous only with the disjointing fruiting calyx, 4- 6.5 mm long, subdimorphic, the lowest lanceolate to narrowly ovate-acuminate, glabrous dorsally, the interfloral ones narrowly lance-acuminate or -caudate, strongly incurved, submembranous and folded at the narrowed base, distally shallow-concave, herbaceous (becoming papery), castaneous or livid, dorsally densely pilose except for the often glabrescent or glabrous tip; calyx 3.4-4.3 mm long, densely pilose externally with straight, ascending hairs up to 1.6-2.4 mm long, the rather broadly campanulate tube 1.9-2.3 mm long, the dorsal sinus a little recessed but the orifice not much oblique, the castaneous ribs little raised, the nearly flat intervals hyaline, charged with 1 (sometimes irregular) row of 2-5 small pale glands, the teeth of subequal length, 1.5-2.2 (2.6) mm long (0.3 mm longer to 0.5 mm shorter than tube), the dorsal one lanceolate, the ventral pair deltate-ovate; petals whitish or pink, glandless, the epistemonous ones shed on expansion; banner 4.7-6.2 mm long, the claw 2.8-3.8 mm, the deltate- or ovate-cordate, distally hooded, entire or emarginate blade 1.4-2.7 mm long, 1.6-2.1 mm wide; epistemonous petals isomorphic, 2.1-4.7 mm long, narrowly oblong-oblanceolate, 0.3-0.8 mm wide, narrowed downward into and about twice as long as the short claw; androecium 5.3-1.1 mm long, the column 2.5-3.4 mm, the free filaments 2.2-4.3 mm long, the anthers 0.7-0.9 mm long; pod in protile obliquely obovate, 2.5-3 mm long, strongly incurved, the ventral suture shortest, the dorsal suture becoming greatiy thickened and castaneous along the prow, the ascending style-base lateral, the valves hyaline in lower 2/3, thence thinly herbaceous, gland-sprinkled, pilosulous" (bibref: 1812).
Fruit: "Seed castaneous, 1.7-2.1 mm long, nearly as wide" (bibref: 1812).

Bloom Information

Bloom Color: White , Pink
Bloom Time: May , Jun , Jul , Aug , Sep
Bloom Notes: "Petals whitish or pink." (bibref: 1812).

Distribution

USA: CO , KS , NE , NM , OK , SD , TX , WY
Native Distribution: "Widely but discontinuously dispersed over the high prairies between southwestern South Dakota and western Texas (upper Cheyenne River in South Dakota; forks of Platte River from western Nebraska upstream just into Wyoming and in Colorado to Denver; Cimarron River in extreme southeastern Colorado, adjoining Kansas, and Oklahoma panhandle; headwaters of Canadian River in northeaster New Mexico and of Concho River in western Texas); disjunctly in scattered stations along the Rio Grande in north-central. and southern New Mexico." (bibref: 1812).
Native Habitat: Dunes, sandy prairies, and sand- or gravel-banks along rivers or intermittent streams, 900-1600 m ( ± 3000-5300 ft)." (bibref: 1812).

Bibliography

Bibref 1512 - Spring Wildflowers of the Northeast: A Natural History (2012) Gracie, C.

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Additional resources

USDA: Find Dalea cylindriceps in USDA Plants
FNA: Find Dalea cylindriceps in the Flora of North America (if available)
Google: Search Google for Dalea cylindriceps