Elsholtzia penduliflora W.W.Sm.

Bongcheewin, B., Chantaranothai, P. & Paton, A., 2015, Elsholtzia (Lamiaceae) in Thailand, Blumea 59 (3), pp. 209-214 : 211

5. Elsholtzia penduliflora W.W.Sm.

Elsholtzia penduliflora W.W.Sm. (1918) 176; Press (1982) 70; X.W. Li & Hedge (1994) 250; Phuong (1995) 35;A.L. Budantzev (1999) 21; Phuong (2000) 231. — Type: Forrest 11686 (holotype E), China, Western flank of the Tali Range, open scrub in side valleys, 25 40’ N, 3000 m, July 1913.

Aphanochilus penduliflorus (W.W.Sm.) Kudo (1929) 64.

Shrubby perennial herb up to 2 m tall. Stems erect, curving more or less downwards, pubescent with whitish hairs. Leaves ovate, 9–15 by 2–4 cm, base cuneate, margin serrate; upper surface pubescent; lower surface pubescent on venation with brownish glands; petioles 5–10 mm long. Inflorescence terminal and axillary, lax, verticils from adjacent nodes not overlapping, 10–15 mm apart, hanging down, cylindrical, 8–15 cm long; bracts linear, 3–5 by 0.8–1 mm; bracteoles linear, 1–2 mm long. Calyx tubular, 3–5 mm long at anthesis; tube slightly ventricose, 2–3 mm long, glabrous with translucent dots outside, glabrous inside; lobes subequal triangular, glabrous on both sides. Corolla campanulate, 3–4 mm long; tube 2.5 mm long, glabrous on both sides; lobes glabrous on both sides; lateral lobes ovate; median lobe emarginate; lower lip broadly ovate, 1 mm long, apex emarginate. Stamens 4, slightly exserted, glabrous. Style exserted. Nutlets 4, ovate-oblong, 1.5 mm long.

Distribution — China, Thailand (N: Chiang Mai, Phitsanulok; possibly introduced), Vietnam.

Ecology — Cultivated in medicinal gardens, disturbed areas around habitation, 800–1100 m altitude. Flowering and fruiting: October to January.

Specimens examined. Jatupol 07­033; Maxwell 88­1255; S.P. et al. 49;

Umpai 564.

Note — Elsholtzia penduliflora is likely to be cultivated because most collections collected are from areas around dwellings and medicinal gardens. We have not observed this species in natural habitats.