《中国植物志》|| 菊科 COMPOSITAE ||细裂系 Ser. Tibeticae Tzvel. ||细叶亚菊 Ajania tenuifolia (Jacq.) Tzvel.

10.细叶亚菊 细叶菊艾 图版17: 1
Ajania tenuifolia (Jacq.) Tzvel. in Fl. URSS 26: 411. 1961. in note Tanacetum tenuifolium Jacq. in DC., Prodr. 6: 129. 1937; Hook. f., Fl. Brit. Ind. 3: 3l9. 1881. ——Chrysanthemum stenolobum Hand.-Mazz. in Act. Hort. Gothob. 12: 265. 1938; S. Y. Hu in Quart. Journ. Taiwan Mus. 19: 43. 1966.
多年生草本，高9-20厘米。根茎短，发出多数的地下匍茎和地上茎。匍茎上生稀疏的宽卵形浅褐色的苞鳞。茎自基部分枝，分枝弧形斜升或斜升。茎枝被短柔毛，上部及花序梗上的毛稠密。叶二回羽状分裂。全形半圆形或三角状卵形或扇形，长宽1-2厘米，通常宽大于长。一回侧裂片2-3对。末回裂片长椭圆形或倒披针形，宽0.5-2毫米，顶端钝或圆。自中部向下或向上叶渐小。全部叶两面同色或几同色或稍异色。上面淡绿色，被稀疏的长柔毛，或稍白色或灰白色而被较多的毛，下面白色或灰白色，被稠密的顺向贴伏的长柔毛。叶柄长0.4-0.8厘米。头状花序少数在茎顶排成直径2-3厘米的伞房花序。总苞钟状，直径约4毫米。总苞片4层，外层披针形，长2.5毫米，中内层椭圆形至倒披针形，长3-4毫米。仅外层被稀疏的短柔毛，其余无毛。全部苞片顶端钝，边缘宽膜质。膜质内缘棕褐色，膜质外缘无色透明。边缘雌花7-11个，细管状，花冠长2毫米，顶端2-3齿裂。两性花冠状，长约3-4毫米。全部花冠有腺点。花果期6-10月。
产甘肃中部、四川西北部、西藏东部及青海。生于山坡草地，海拔2000-4580米。印 度西北部也有分布。

《Flora of China》|| Asteraceae || Ajania ||细叶亚菊 Ajania tenuifolia

16. Ajania tenuifolia (Jacquemont ex Candolle) Tzvelev in Schischkin & Bobrov, Fl. URSS. 26: 411. 1961.

细叶亚菊 xi ye ya ju

Tanacetum tenuifolium Jacquemont ex Candolle, Prodr. 6: 129. 1838; Ajania roborowskii Muldashev; ?A. roborowskii var. tsinghaica Muldashev; Chrysanthemum roborowskii (Muldashev) H. Ohashi & Yonekura; ?C. roborowskii var. tsinghaicum (Muldashev) H. Ohashi & Yonekura; C. stenolobum Handel-Mazzetti.

Herbs, perennial, 9-25 cm tall; rhizomes slender, with slender fibrous roots. Stems many, procumbent and erect; procumbent stems with many brown ovate cataphylls; erect stems branched from base, upper parts and peduncles appressed pubescent, hairs medifixed. Middle stem leaves: petiole 0.4-0.8 cm; leaf blade suborbicular, triangular-ovate, or flabelliform, 1-2 × 1-2 cm, abaxially white or gray-white, densely appressed villous, adaxially pale green, sparsely villous, 2-pinnatisect; primary lateral segments 2- or 3-paired; ultimate segments narrowly elliptic or oblanceolate. Proximal and distal stem leaves gradually smaller. Synflorescence a terminal flat-topped cyme, 2-3 cm in diam. Capitula few. Involucres campanulate, ca. 4 mm in diam.; phyllaries in 4 rows, apex obtuse, scarious margin distinctly divided into dark brown inner zones and narrow colorless outer zone, outer ones lanceolate, ca. 2.5 mm, abaxially sparsely pubescent, middle and inner ones elliptic to oblanceolate, 3-4 mm, abaxially glabrous. Florets dark or orange yellow, exterior with sessile glands; marginal female florets 7-13, corolla narrowly tubular, ca. 2 mm, apex 2- or 3-denticulate; disk florets 30-60, corolla 3-4 mm. Achenes ca. 1 mm. Fl. and fr. Aug-Oct. 2n = 36*.

● Grasslands on mountain slopes; 2200-4600 m. Gansu, Jiangsu, Qinghai, Sichuan, Xizang, Yunnan.

Ajania roborowskii var. tsinghaica is known to us only from the protologue. It appears to be a depauperate form with less divided leaves.