Heliotropium benadirense Chiov.

This species is accepted, and its native range is S. Somalia to E. Kenya.

[FTEA]

Boraginaceae, B. Verdcourt. Flora of Tropical East Africa. 1991

Morphology General Habit
Annual branched slightly fleshy herb (3–)15–25(–30) cm. tall; stems with upwardly directed tubercle-based bristly white hairs but not obscuring the surface; rootstock slender, little-branched.
Morphology Leaves
Leaf-blades ovate, 1–3.5(–4.5) cm. long, 0.7–2(–3.5) cm. wide, ± acute to narrowly rounded at the apex, abruptly contracted to a cuneate base, with regular adpressed bristly white ± tubercle-based hairs above of unequal size and similar beneath with longer hairs on the nerves; petioles 0.3–1.2 cm. long.
Morphology Reproductive morphology Inflorescences
Scorpioid cymes both lateral and terminal, simple in the limited material seen, 1–9 cm. long, the flowers sessile, very dense and touching or at least closely placed, the axes with similar indumentum to the stems.
Morphology Reproductive morphology Flowers Calyx
Calyx ± 2.5–3 mm. long with white bristly spreading hairs; lobes linear-triangular, ± 0.5–1 mm. wide at the base.
Morphology Reproductive morphology Flowers Corolla
Corolla white; tube just under 3(–4 fide Chiovenda) mm. long, the upper 2/3 pubescent outside, the base glabrous; lobes oblong or ± round, 1.2–2 mm. long, 0.8–1.5 mm. wide, rounded.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers 0.9 mm. long, attached about the middle of the tube.
Morphology Reproductive morphology Flowers Gynoecium Style
Style 0.8 mm. long, shining, minutely striate; stigma 0.5 mm. long, the narrow apical part papillate, the wider coroniform part grooved.
Morphology Reproductive morphology Fruits
Fruit depressed ovoid-oblong, 2.5 mm. wide, 1.8 mm. tall, greenish brown, glabrous but clearly papillate under very high magnifications; nutlets 2, the sutures produced at apex laterally so that if viewed from side they appear shortly 2-horned, with 2 obscure furrows, each nutlet 2-seeded.
Figures
Fig. 14/4, p. 54.
Habitat
Sand-dunes and sandy places a little inland; 3–6 m.
Distribution
K7

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Type
S2, between Mogadishu and Gezira, Paoli 63 (FT lecto.)
Morphology General Habit
Annual herb up to 30 cm tall, ± hispid with appressed to spreading tubercle-based hairs
Morphology Leaves
Leaf-blades ovate, 1–3.5(–4.5) x 0.7–2(–3.5) cm, abruptly cuneate at the base, acute to obtuse at the apex; petiole 0.3–1.2 cm long
Morphology Reproductive morphology Inflorescences
Flowers sessile in simple up to 9 cm long cymes; bracts absent
Morphology Reproductive morphology Flowers Calyx
Calyx hispid with spreading hairs; lobes linear-lanceolate, 2–3 x 0.4–1 mm
Morphology Reproductive morphology Flowers Corolla
Corolla white, sometimes with yellow centre; tube c. 3 mm long, pubescent in upper part outside; lobes 1.2–2 x 0.8–1.5 mm, often markedly unequal, rounded, pubescent in lower part outside
Morphology Reproductive morphology Flowers Gynoecium Style
Style c. 0.8 mm long, glabrous; stigmatic head narrowly conical, c. 0.5 mm long, papillate
Morphology Reproductive morphology Fruits
Nutlets 2, c. 2 x 2.5 mm, almost square, shortly 2-horned, papillate.
Distribution
S2, 3; E Kenya
Ecology
Altitude range 0–120 m.
Note
This is close to H. steudneri, but the combination of an annual habit, simple cymes, often markedly unequal corolla-lobes, and papillate, shortly 2-horned nutlets is distinctive.

Native to:

Kenya, Somalia

Heliotropium benadirense Chiov. appears in other Kew resources:

First published in Res. Sci. Somalia Ital. 1: 119 (1916)

Accepted by

  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.
  • Verdcourt, B. (1991). Flora of Tropical East Africa, Boraginaceae: 1-124.

Literature

Kew Backbone Distributions

  • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by M. Thulin [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • Chiov., Fl. Somala 2: 319, fig. 185 (1932).
  • Chiov., Result. Sci. Miss. Stef.-Paoli, Coll. Bot.: 119 (1916)
  • Cufod., Enumeratio Plantarum Aethiopiae Spermatophyta (Supplement in Bull. Jard. Bot. Brux.) p. 772 (1961).

  • Flora of Somalia

    Flora of Somalia
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of Tropical East Africa

    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0