Compilation
Waltheria americana

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Name

Identification
Waltheria americana L. [family STERCULIACEAE ] (stored under name); Verified by Not On Sheet,
Related name
  • Waltheria americana
  • Waltheria pedunculata
  • Waltheria rotundifolia
  • Waltheria pohliana
  • `
  • Waltheria virgata
  • Waltheria indica
  • Croton alamosanus
  • Elaterium palmatum

Flora

Entry for WALTHERIA indica L. [family STERCULIACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Somalia
Resource Type
Reference Sources
Entry From
Flora Somalia, Vol 2, (1999) Author: by M. Thulin [updated by M. Thulin 2008]
Names
WALTHERIA indica L. [family STERCULIACEAE], (1753). Fig. 16 F–I, 17.
WALTHERIA americana L. [family STERCULIACEAE], (1753).
WALTHERIA laxa Thulin [family STERCULIACEAE], (1999);. type: S2, Balcad, Raimondo & Fici A10/86 (PAL holo.).
Information
Perennial herb or subshrub up to 1 m or more tall, stellate-pubescent to stellate-tomentose, with ascending to decumbent stems. Leaves with 0.2–3 cm long petiole; stipules up to 5 mm long, subulate; blade ovate to narrowly oblong, 1.5–9 x 0.5–4 cm, obtuse to subacute at the apex, rounded to subcordate at the base, with serrate margins; venation prominent beneath. Flowers subsessile in dense axillary clusters. Calyx c. 2–3 mm long, tomentose. Petals yellow, c. 3–4 mm long. Stamens with filaments united into a tube; anthers obtuse. Ovary sessile; style 1–1.5 mm long, with penicillate stigma. Capsules c. 3 mm long, obovoid, hairy. Seeds c. 2 x 1.5 mm, dark brown, smooth.
Range
N1; C2; S1–3 throughout the tropics and subtropics.
Altitude range
5–500 m.
Distribution
SOMALIA Kazmi, Elmi & Rodol 757; Gillett 4527; Thulin & Warfa 4515.
Notes
Siigareb (Som.). The Somali material is very variable and includes, for example, small-leaved decumbent plants up to 10–15 cm tall growing on coastal dunes (Thulin & Warfa 4515). W. laxa was based on a specimen with pedicellate flowers, free filaments and stipitate ovaries. However, this is a teratological phenomenon of no taxonomic value. Similar abnormalities have been reported in material of W. indica from southern Africa by Scott in Bothalia 12: 452 (1978).

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