Elephantopus mollis
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Ordo: Asterales
Familia: Asteraceae
Genus: Elephantopus
Name
Elephantopus mollis Kunth in Humb., Bonpl. & Kunth, Nov. Gen. Sp. 4: 26. 1820. – Wikispecies link – IPNI link – Pensoft Profile
- Elephantopus tomentosus Koster, Blumea 1: 464. 1935, non L.
Type
Venezuala, Caracas, Humboldt & Bonpland 627 (holotype: P!). Fig. 8A.
Description
Perennial herbs, 0.5-2.0 m tall. Stems caulescent, erect or procumbent, terete, inconspicuously ribbed, pilose. Leaves alternate, 10–20 by 3–5 cm, elliptic or oblong, margin crenate, apex acute, base attenuate, subcoriaceous; both surfaces sparsely pilose with filiform hairs, cylindrical hairs and capitate glands; lateral veins 10–16-paired; petioles up to 10 mm long. Capitulescences terminal and axillary, paniculate. Foliose bracts 3, deltoid. Capitula tubular, 7–8 mm long. Receptacle flat, ca. 1 mm in diam., glabrous. Involucres tubular, 6.5–8 mm long, 3–4 mm in diam. Phyllaries 8, in 2 series, decussate, light green, margin entire, outer surface puberulous, without glands; the outer ovate, apex acute; the inner ones lanceolate, apex acuminate. Florets 4; corollas white, zygomorphic, glabrous; corolla tubes slender, 3–5 mm long; corolla lobes bilabiate, 1.5–2 mm long. Anthers ca. 1 mm long, apical appendage acute, base rounded. Styles white, 4–5 mm long, branches ca. 1 mm long. Achenes clavate, 2.5–3 mm long, pubescent, densely covered with twin hairs but lacking glands, inconspicuously ribbed. Pappus of 5 bristles in one series, dilated at base, 2.5–4.5 mm long.
Distribution
Thailand: Nakhon Ratchasima; Ubon Ratchathani, Satun, Songkhla. Pantropics.
Specimens examined
Thailand, Ubon Ratchathani, Chong Mek border crossing, 15°8.02'N, 105°28.01'E, 27 Oct 2007, S. Bunwong 340 (KKU, US); Nakhon Ratchasima, Hui Thaleng, 28 Dec 1928, Put 2205 (BM); Satun, 28 Jan 1961, T. Smitinand 7194 (BKF); SongKhla, Had Yai, 23 Jan 1986, J.F. Maxwell 86-47 (BK, CMU, L).
Diagnostic characters
Elephantopus mollis is cleary recognized by its cauline leaves and completely white flowers.
Ecology
Evergreen forest, alt. 0–100 m; flowering October to December.
Vernacular name
Doo Mai Ru Lom (โด่ไม่รู้ล้ม), Hun Huay (หุนหวย).
Taxon Treatment
- Bunwong, S; Chantaranothai, P; Keeley, S; 2014: Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys, 37: 25-101. doi
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