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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Artemisia

176. Artemisia littoricola Kitamura, Acta Phytotax. Geobot. 5: 94. 1936.

滨海牡蒿 bin hai mu hao

Artemisia japonica Thunberg subsp. littoricola (Kitamura) Kitamura; A. japonica f. resedifolia Takeda; A. japonica f. sachalinensis Pampanini; Oligosporus littoricola (Kitamura) Poljakov.

Herbs, perennial, 30-100 cm tall, gray pubescent or glabrescent. Basal leaves forming a rosette; those of sterile shoots obovate, 5-10 × 3-5 cm, palmately to pinnately lobed. Lowest stem leaves ± sessile; leaf blade broadly ovate, suborbicular, or obovate, 3-5 × 3-5 cm, gray arachnoid pubescent, later glabrescent, deeply palmately lobed or 1(or 2)-pinnatipartite to -sect; segments 2(or 3) pairs, linear, 1.5-4 mm wide, base attenuate. Middle stem leaves oblong-attenuate or elliptic-spatulate, 5.5-8 × 4-6 cm, 1- or 2-pinnati- or subpalmatipartite or 3-partite; segments 1 or 2 pairs, serrate or cleft, base attenuate. Uppermost leaves and leaflike bracts elliptic-lanceolate or linear-lanceolate. Synflorescence a broad, conical panicle. Capitula shortly pedunculate. Involucre subglobose or broadly ovoid, 2-2.5(-3) mm in diam. Marginal female florets 4-8(-12); corolla 1-1.5 mm. Disk florets bisexual 5-7; corolla 2-2.5 mm, glabrous. Achenes ellipsoid-ovoid. Fl. and fr. Aug-Oct. 2n = 36.

Riverbanks, saline-alkaline soils, in marsh grass. W Heilongjiang, E Nei Mongol [Japan, Korea, E Russia].


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