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Bidens biternata

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Name

Identification
Isotype of Bidens abyssinica Sch.Bip. ex Walp. [family COMPOSITAE ] Verified by Not on sheet, Bidens biternata (Lour.) Merr. & Sherff [family COMPOSITAE ] (stored under name); Verified by Not on sheet,
Related name
  • Bidens leucantha
  • Bidens biternata
  • Bidens kotschyi
  • Bidens
  • Bidens abyssinica
  • Bidens pilosa
  • Bidens robertianifolia
  • Bidens chinensis
  • Bidens quadriseta
  • Coreopsis biternata

Flora

Entry for BIDENS biternata (Lour.) Merr. & Sherff [family COMPOSITAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Somalia
Resource Type
Reference Sources
Entry From
Flora Somalia, (2000) Author: by H. Beentje (Acanthospermum, Ageratum, Aspilia, Atractylis, Blainvillea, Blumea, Carthamus, Cirsium, Conyza, Crepis, Dichrocephala, Distephanus, Echinops, Eclipta, Erlangera, Felicia, Flaveria, Geigera, Gerbera, Grangea, Gutenbergia, Helichrysum, Iphiona, Iphionopsis, Jurinea, Laggera, Litogyne, Osteospermum, Pegolettia, Pentanema, Pseudoblepharispermum, Pseudognaphalium, Psiadia, Pulicaria, Reichardia, Sclerocarpus, Sonchus, Sphaeranthus, Tagetes, Tarchonanthus, Tridax, Vernonia, Volutaria, Xanthium), T. Eriksson (Athroisma, Blepharispermum), N. Kilian (Launaea), S. King-Jones & M. Thulin (Pluchea), Mesfin Tadesse (Bidens), S. Ortiz & J. Rodríguez-Oubiña (Dicoma), and M. Thulin (Cineraria, Doellia, Emilia, Erythroseris, Euryops, Galinsoga, Gynura, Helianthus, Kleinia, Lactuca, Pentzia, Senecio, Solanecio, Verbesina, Zinnia). [updated by M. Thulin 2008]
Names
BIDENS biternata (Lour.) Merr. & Sherff [family COMPOSITAE], (1929). Fig. 371A–K.
Information
Erect annual herb, 0.5–1 m high. Leaves with petiole 1–4 cm long; blade pinnately (3–)5–9-lobed or partly bipinnatisect, segments glabrescent, ovate or ovate-lanceolate, 1–8 x 1–4.5 cm, crenate-serrate or rarely lobulate-dentate, the terminal segment the longest and widest. Capitula 5–7 x 5–8 mm at anthesis, up to 25 mm high in fruit. Outer phyllaries green, (3–)4–8(–15), linear or oblanceolate, 4–6(–12) mm long, up to 20 mm long in fruit. Inner phyllaries yellowish-green with yellowish-white scarious margins, 8–11, linear-oblong, 3.5–7 mm long. Ray florets yellow, 2–5, neuter or with staminodes, with 5–7 orange striations, 3–6 x 1.3–2 mm, 2–3-cleft at the apex. Disk florets with corolla 3–3.7 mm long. Achenes black, 6–16(–20) x 0.8–1.1 mm, linear-tetragonal, each face 2-striate-sulcate. Pappus aristae 2–4(–5), 1–4 mm long, backwardly barbed.
Range
N1, 2; S1, 3 widespread in the Old World, in Africa from southern Egypt in the north to South Africa in the south.
Altitude range
100–1500 m.
Distribution
SOMALIA Wood S/73/66; Thulin & Bashir Mohammed 7058; Thulin 10899.

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