《中国植物志》|| 菊科 COMPOSITAE ||垫型蒿系 Ser. 9. Minores Y. R. Ling ||藏白蒿 Artemisia younghusbandii J. R. Drumm. ex Pamp.
16.藏白蒿(西藏植物志)
Artemisia younghusbandii J. R. Drumm. ex Pamp. in Nuov. Giorn. Bot. Ital. n. s. 34: 708. 1927; S. Y. Hu in Quart. Journ. Taiwan Mus. 18 (3-4): 269. 1965: 西藏植物志4: 751. 1985.
半灌木状草本。根木质,粗大;根状茎粗,木质,直径达2-5厘米,上部常分化为若干
部分,并具多数营养枝。茎多数,细,丛生,高15-25(-30)厘米,下部木质,上部半木质;分枝多而长,近平展或斜展;茎、枝、叶两面及总苞片背面密被灰白色或灰黄色绒毛。茎下部与中部叶宽卵形、卵形或近肾形,长0.5-1厘米,宽0.5-0.8厘米,一(至二)回羽状全裂,每侧有裂片2-3枚,不再分裂或具1-2枚小裂片,裂片或小裂片披针形或椭圆状披针形,长1-2毫米,宽0.5-1毫米,叶柄长0.2-0.4厘米,基部有假托叶;上部叶与苞片叶羽状全裂、3裂或不分裂,裂片或不分裂的苞片叶披针形或椭圆状披针形。头状花序半球形或宽卵形,直径(2.5-)3-4毫米,有短梗或近无梗,斜展或下垂,在小枝端单生或数枚集生,而在分枝上排成疏散的总状花序状,并在茎上组成开展的圆锥花序;总苞片3-4层,外层、中层总苞片长卵形,内层总苞片长卵形或椭圆形,边缘宽膜质;花序托凸起,圆锥形,有白色托毛;雌花4-8朵,花冠狭圆锥状,檐部具3-2裂齿,花柱略伸出花冠外,先端钝尖;两性花8-14朵,花冠管状,檐部紫色,花药线形,先端附属物尖,长三角形,基部钝或有短尖头,花柱近与花冠等长,先端稍叉开,叉端截形。瘦果倒卵状椭圆形。花果期7-10月。
我国西藏特有种;生于海拔4 000-4 650米的河谷、滩地、阶地、山坡、路旁、砾质坡地与砾质草地上,常与针茅属 (Stipa Linn.) 植物共同组成高山地区寒荒漠群落的建群种。模式标本采自西藏江孜。
数据来源 中国植物物种信息数据库 《Flora of China》|| Asteraceae || Artemisia ||藏白蒿 Artemisia younghusbandii
16. Artemisia younghusbandii J. R. Drummond ex Pampanini, Nuovo Giorn. Bot. Ital., n.s.,. 34: 708. 1927.
藏白蒿 zang bai hao
Herbs or subshrubs, caespitose, 15-25(-30) cm tall, with thick woody stock and branches, much branched, densely gray or yellowish tomentose. Basal and middle stem leaves: petioles 2-4 mm; leaf blades ovate, broadly ovate, or subreniform, 5-10 × 5-8 mm, 1(or 2)-pinnatisect; segments 2 or 3 pairs, entire or lobulate; lobes or lobules minute, lanceolate or elliptic-lanceolate, 1-2 × 0.5-1 mm. Uppermost leaves and leaflike bracts pinnatisect, 3-lobed, or entire. Synflorescence a broad panicle. Capitula nodding. Involucre hemispheric or broadly ovoid, (2.5-)3-4 mm in diam.; receptacle conical, pubescent. Marginal female florets 4-8. Disk florets 8-14; corolla limb purple, glabrous. Achenes obovoid-ellipsoid. Fl. and fr. Jul-Oct.
● Canyons, hills, rocky slopes, waysides; 4000-4700 m. Xizang.
数据来源 eFloras.org