Lespedeza hirta |
Lespedeza violacea |
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hairy bush-clover, hairy bush-clover or lespedeza, hairy lespedeza |
prairie lespedeza, violet lespedeza, wand bush-clover, wandlike bush-clover |
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Habit | Herbs. | Herbs. | ||||
Stems | erect or ascending, 80–200 cm, branched distally, short appressed-pubescent, pilose, or villous. |
erect or ascending, 40–150 cm, wandlike or branched apically, strigose or puberulent. |
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Leaves | stipules subulate to narrowly triangular, 3–6 mm; petiole 10–15(–20) mm, longer than rachis; leaflet blades ovate-elliptic, obovate, or rounded, apex obtuse or retuse, minutely apiculate, surfaces green, cinereous, or silvery abaxially, sparsely to densely sericeous abaxially, glabrous, sericeous, pilose, or silvery with fine, dense, appressed-silky hairs adaxially; terminal blade 10–40(–50) × (7–)10–30 mm, length 1.3–1.8 times width. |
stipules subulate to narrowly triangular, 2–4 mm; petiole 7–20 mm, longer than rachis; leaflet blades obovate to elliptic-oblong, apex obtuse or retuse, apiculate, surfaces strigose abaxially, often glabrous, sometimes sparsely appressed-puberulent only on midrib adaxially; laterals not oblique at base; terminal blade 10–40 × 5–15 mm, length 1.5–3 times width. |
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Racemes | 10–40-flowered, axillary from distal leaves or clustered in compound inflorescences, flowers compact to lax, axis and pedicels visible, flowers chasmogamous and cleistogamous. |
4–10-flowered, crowded distally, flowers chasmogamous and cleistogamous. |
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Peduncles | longer than subtending leaves. |
shorter than or equal to subtending leaves. |
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Pedicels | 1–2 mm; bracteoles longer than calyx tube. |
2–3 mm; bracteoles shorter than calyx tube. |
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Flowers | chasmogamous 7–10 mm; calyx 7–10 mm, pubescent, tube 1–2 mm; lobes 5, lateral narrowly triangular, 7–8 mm, apices spinelike; corolla cream-white or creamy with pink or purple at throat; wings 6–7 mm; keel 5–6 mm. |
chasmogamous 6–7 mm; calyx 3–4.5 mm, appressed-puberulent, tube 1–1.5 mm; lobes 4, lateral narrowly triangular, 2–3 mm, adaxial connate proximally; corolla pink-lavender to purple; wings 6–7 mm; keel 5–6 mm. |
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Loments | chasmogamous slightly included in calyx, ovate-oblong, 6–8 × 4–5 mm, cleistogamous slightly included in calyx, oblong, 6 × 4 mm; stipe subsessile. |
body exserted from calyx, calyx 1/2 loment length, chasmogamous ovate to rounded, 5–7 mm, cleistogamous rounded, 4–6 mm, appressed-puberulent; stipe 1.5 mm. |
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2n | = 20. |
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Lespedeza hirta |
Lespedeza violacea |
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Phenology | Flowering summer–fall. | |||||
Habitat | Open, upland rocky, deciduous woodlands, mixed or dry pine woods, mesic bottoms, old fields, roadsides, often on acidic, sandy soils. | |||||
Elevation | 0–1000 m. (0–3300 ft.) | |||||
Distribution |
North America
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AL; AR; CT; DC; DE; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; ON
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Discussion | Subspecies 2 (2 in the flora). Lespedeza hirta forms natural hybrids with L. angustifolia, L. capitata, L. frutescens, L. procumbens, L. repens, L. stuevei, L. violacea, and L. virginica. Hybrids with L. violacea have been called L. × nuttallii Darlington, and offspring from Indiana plants of L. × nuttallii show morphologies that range from one parental species to the other. Other purple-petaled species may hybridize with L. hirta to produce offspring similar to the morphology of L. × nuttallii (D. Isely 1998). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The name Lespedeza intermedia has traditionally been used for plants here called L. violacea (J. L. Reveal and F. R. Barrie 1991). The species that previously was called L. violacea is now L. frutescens. Lespedeza violacea forms natural hybrids with L. capitata, L. frutescens, L. hirta, L. procumbens, L. repens, L. stuevei, and L. virginica. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||
Parent taxa | Fabaceae > subfam. Faboideae > Lespedeza | Fabaceae > subfam. Faboideae > Lespedeza | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Hedysarum hirtum | Hedysarum violaceum, L. intermedia | ||||
Name authority | (Linnaeus) Hornemann: Hort. Bot. Hafn. 2: 699. (1815) | (Linnaeus) Persoon: Syn. Pl. 2: 318. (1807) | ||||
Web links |