Genus:
Euploca Nutt.

Euploca ovalifolia (Forssk.) Diane & Hilger

This species is accepted, and its native range is Turkey to Egypt, Dry Tropical Africa, Madagascar, Arabian Peninsula, Indian Subcontinent to Indo-China, Lesser Sunda Islands, Solomon Islands.

[FWTA]

Boraginaceae, H. Heine. Flora of West Tropical Africa 2. 1963

Morphology General Habit
Diffuse densely white-villous stems from a woody base and taproot
Morphology Reproductive morphology Flowers
Small white flowers in cymes 2-3 in. long.

[FZ]

Boraginaceae, E. S. Martins (Trichodesma by R. K. Brummit). Flora Zambesiaca 7:4. 1990

Morphology General Habit
Erect or decumbent annual or perennial herb up to 60(90) cm. high with a thin rootstock; stems pubescent, woody or subwoody to the base, branches often laterally compressed and silvery-sericeous to the extremities.
Morphology Leaves
Leaves numerous, alternate; petiole 2–20 mm. long, pubescent to villous; lamina 10–60 x 4–30 mm., obovate or elliptic, pubescent, strigose-villous or tomentose on both surfaces, with hairs of two kinds, long and hardy, appressed and with swollen bases, some weak, short and spreading, at least on the basal leaves, the others, rounded to retuse, rarely subacute but always apiculate or mucronate at apex, acute or subacute at base, margins slightly revolute.
Morphology Reproductive morphology Inflorescences
Cymes dense, up to 17 cm. long when completely developed, often 2, sometimes 1 or 3, rarely 4 together; common peduncle 2–4(6) cm. long.
Morphology Reproductive morphology Flowers
Flowers subsessile but pedicels increasing up to 2 mm. in fruit and decurrent on the rhachis.
Morphology Reproductive morphology Flowers Calyx
Calyx lobes unequal, the largest one up to 3.0 x 1.0 mm. (6.0 x 1.5 mm. in fruit), ovate, the smallest one 1.0–2.0 x 0.2–0.4 mm., lanceolate, strigose outside and inside.
Morphology Reproductive morphology Flowers Corolla
Corolla pubescent outside, glabrous inside save by a ring of flattened hairs (sometimes lacking) at the level of the anther tips, usually with yellow tube and white limb; tube 1.5–3.0 mm. long, slightly widened at the middle; lobes 0.5–1.5(2.0) x 0.4–1.5 mm., unequal or subequal, broadly ovate to triangular-ovate, suberect, apex acute or apiculate.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens inserted on the lower third of the corolla tube; anthers 0.7–1.2 mm. long, narrowly lanceolate, minutely hairy at apex, subsessile.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style very short; stigmatic ring well-marked; sterile appendix 0.3–0.6 mm. long, conical with apex truncate or minutely 2-dentate, glabrous or shortly hairy.
Morphology Reproductive morphology Fruits
Fruits c. 1.5 x 2.0 mm., subglobular depressed, densely clothed with whitish appressed short hairs; nutlets 4, free, with the inner surfaces without cavities.

[FTEA]

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

Morphology General Habit
Usually a perennial herb 7–90 cm. long or tall with thick woody taproot and stems branched, procumbent, woody at the base but sometimes erect and apparently sometimes annual (?flowering in first year); stems often compressed, very leafy, silky-silvery pubescent on the young branches.
Morphology Leaves
Leaf-blades obovate or elliptic, 0.5–5.5 cm. long, 0.25–2.5 cm. wide, retuse but mucronate or apiculate or less often acute at the apex, cuneate at the base, pubescent to strigose-villous, often silvery on both surfaces, the hairs of two sorts, longer and tubercle-based and shorter and thinner, the margins entire, narrowly thickened, only the costa distinctly visible; petiole up to 1.5(–2) cm. long.
Morphology Reproductive morphology Inflorescences
Cymes 1–3, terminal, scorpioid, spike-like, often paired, at first often very short and ± capitate, 1.5–15 cm. long, strigose; flowers disposed in 2 ranks, at first subsessile; peduncles up to 3.5 cm. long; pedicels accrescent, 0.5–2 mm. long finally decurrent.
Morphology Reproductive morphology Flowers Calyx
Calyx 1.6–3.5 mm. long, strigose outside, persistent and accrescent in fruit, deeply divided into unequal lanceolate lobes, 1.5–3.3 mm. long, 0.3–1.2 mm. wide.
Morphology Reproductive morphology Flowers Corolla
Corolla white, often yellow at the throat, strigose-pubescent outside with adpressed hairs; tube cylindrical, enlarged at the middle, (1.4–)2.3–3.7 mm. long, with a ring of adpressed hairs inside at tops of anthers; lobes broadly elliptic to ovate-triangular, erect or spreading, 0.7–1 mm. long, 0.4–1.5 mm. wide, the acute apices sometimes inflexed.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary subglobose, 0.5 mm. diameter, glabrous or pubescent at the tip.
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigma sessile, conic with basal crown, 0.5–0.7 mm. long, truncate or sometimes very shortly bifid with several erect hairs at apex.
Morphology Reproductive morphology Fruits
Fruits subglobose, flattened, 1.7–2 mm. diameter, 4-lobed and breaking into 4 nutlets, the external face densely covered with short ± adpressed white hairs; internal faces devoid of cavities.
Figures
Fig. 19/6, p. 71.
Habitat
Essentially a plant of wet places in dry bushland, etc., e.g. on sand in A. seyal woodland near water, sandy beaches by dry country rivers, dried mud around pools in grassland, salt pans, also on black cotton soil near irrigation channels; ± 0–1635 m.
Distribution
K1 K4 K6 K7 P T1 T2 T4 T5 T6 T7 T8 Senegal to Ethiopia and Somalia to South Africa and Angola,also introduced into Pacific and Taiwan

[FSOM]

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

Morphology General Habit
Prostrate to erect herb or subshrub with stems up to 0.9 m long or tall, silvery pubescent with short hairs and longer tubercle-based hairs
Morphology Leaves
Leaf-blades obovate to elliptic, 0.5–6 x 0.25–3 cm, cuneate at the base, retuse and apiculate or sometimes acute at the apex; petiole up to 1.5(–2) cm long
Morphology Reproductive morphology Inflorescences
Flowers on 0.5–2 mm long pedicels, in simple or branched 1.5–15 cm long cymes
Morphology Reproductive morphology Flowers Calyx
Calyx silvery pubescent; lobes lanceolate, unequal, 1.5–3.3 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla white or with yellow throat, appressed pubescent outside; tube 2–3.7 mm long; lobes 0.7–1.5 mm long, acute
Morphology Reproductive morphology Flowers Gynoecium Stigma
Stigmatic head sessile, conical, 0.5–0.7 mm long, hairy at apex
Morphology Reproductive morphology Fruits
Nutlets 4, 1.5–2 mm long, densely covered with short hairs.
Distribution
N2; C1, 2; S1–3 widespread in tropical Africa, Madagascar, Arabian Peninsula, Pakistan, India, also introduced elsewhere.
Ecology
Altitude range 50–720 m.

Native to:

Angola, Assam, Bangladesh, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Caprivi Strip, Chad, Djibouti, Egypt, Eritrea, Ethiopia, Gabon, Ghana, Guinea-Bissau, India, Kenya, KwaZulu-Natal, Lesser Sunda Is., Madagascar, Malawi, Mali, Mauritania, Mozambique, Myanmar, Namibia, Nepal, Niger, Nigeria, Northern Provinces, Oman, Pakistan, Palestine, Senegal, Socotra, Solomon Is., Somalia, Sudan, Swaziland, Tanzania, Turkey, Uganda, Vietnam, Yemen, Zambia, Zaïre, Zimbabwe

Introduced into:

Chagos Archipelago, Ogasawara-shoto

English
Forget-me-not, Grey-leaf heliotrope

Euploca ovalifolia (Forssk.) Diane & Hilger appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 1984 Brown, R. [2924], Australia Heliotropium gracile K000998264 Yes
Aug 1, 1880 Brown, R. [s.n.], Queensland Heliotropium gracile K000998263 Yes
Brown, R. [s.n.], Queensland Heliotropium gracile K000998265 Yes
Thozet, A. [s.n.], Queensland Heliotropium gracile K000998266 Yes
Jan 1, 2009 Heath [1449], Botswana Heliotropium ovalifolium K000450150 No
Jan 1, 1987 Scott, L. [s.n.], Mozambique Heliotropium ovalifolium K000418766 holotype Yes
Jan 1, 1922 Hunter [s.n.], Tamil Nadu Heliotropium ovalifolium K000998215 Yes
Drege [s.n.], South Africa Heliotropium ovalifolium K000418750 Yes
Drege [s.n.], South Africa Heliotropium ovalifolium K000418751 Yes
Drege [s.n.], South Africa Heliotropium ovalifolium K000418755 Yes
Drege [s.n.], South Africa Heliotropium ovalifolium K000418754 Yes
Rehmann, A. [5295], South Africa Heliotropium ovalifolium K000418753 Yes
Kotschy [7] Heliotropium ovalifolium K000418800 Yes
Kotschy [146], Ethiopia Heliotropium ovalifolium K000418801 Yes
Kotschy [146], Ethiopia Heliotropium ovalifolium K000418802 Yes
Lehmann [s.n.], Egypt Heliotropium ovalifolium K000418817 Yes
s.coll. [s.n.], Pakistan Heliotropium ovalifolium K000998214 Yes
Wallich, N. [Cat. no. 2089], India Heliotropium ovalifolium K001115097 Yes
s.coll. [Cat. no. 2089] Heliotropium ovalifolium K001115098 Yes
s.coll. [Cat. no. 2089] Heliotropium ovalifolium K001115095 Yes
Chamisso, L.A.von [s.n.], Guam Heliotropium ovalifolium K000998325 Yes
s.coll. [Cat. no. 2089], India Heliotropium ovalifolium K001115096 Yes
Gill [s.n.], South Africa Heliotropium ovalifolium K000418752 Yes
s.coll. [Cat. no. 2089] Heliotropium ovalifolium K001115094 Yes
Kotschy [333], Sudan Heliotropium ovalifolium K000418799 Yes
s.coll. [Cat. no. 7016], India Heliotropium coromandelianum K001126577 Yes
s.coll. [Cat. no. 7016] Heliotropium coromandelianum K001126575 Yes
s.coll. [Cat. no. 7016] Heliotropium coromandelianum K001126574 Yes
s.coll. [Cat. no. 7016] Heliotropium coromandelianum K001126576 Yes
Jun 22, 1848 Kotschy [333], Sudan Heliotropium kunzii K000418803 Yes

First published in Bot. Jahrb. Syst. 125: 48 (2003)

Accepted by

  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis. PhytoKeys 23: 1-18.
  • Dobignard, A. & Chatelain, C. (2012). Index synonymique de la flore d'Afrique du nord 4: 1-431. Éditions des conservatoire et jardin botaniques, Genève.

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