1. Compositae (菊科)
2. Artemisia (蒿属)
3. Artemisia zhongdianensis (中甸艾)

1. ASTERACEAE (菊科)
2. Artemisia
3. Artemisia zhongdianensis (中甸艾 )

1. ASTERACEAE (菊科)
2. Artemisia
3. Artemisia zhongdianensis (中甸艾)

1. Asteraceae
2. Artemisia
3. Artemisia zhongdianensis

1. Asteraceae
2. Artemisia
3. Artemisia zhongdianensis (中甸艾)

1. Asteraceae (菊科)
2. Artemisia (蒿属)
3. Artemisia zhongdianensis (中甸艾)

Herbs perennial, 36-100 cm tall; rhizomes long, slender, stoloniferous. Stems erect, simple, sometimes distally branched, ± flexuous, ± striate, hispid-villous, minutely stipitate glandular. Leaves cauline, slightly reduced upward, abaxially pale green, adaxially green, abaxially hispid-strigose, densely so on veins, adaxially hispid-strigose, both surfaces sparsely minutely stipitate glandular in pits, margin coarsely serrate to serrate, hispid, strigose, or villous-ciliate, midvein prominent abaxially, apex acuminate, mucronate; lowest leaves withered by anthesis (not seen); lower to upper leaves broadly winged petiolate; blade ovate to lanceolate, 3.5-5.5(-10) × 1.5-2.5(-4) cm, base cuneate-rounded to rounded; synflorescence leaves broadly winged shortly petiolate, lanceolate, 1.3-2 × 0.6-0.9 cm, base cuneate, margin 3-6-serrate, slightly resinous. Capitula 16 or more in terminal corymbiform synflorescences, ca. 1.5 cm in diam.; peduncles 7-15 mm or longer, densely hispid-strigose, minutely stipitate glandular, resinous; bracts lanceolate, entire. Involucres campanulate, (4-)5-5.2 × ca. 5 mm; phyllaries 4-seriate, unequal, green apically, abaxially distally villosulous and minutely stipitate glandular, margin scarious, erose, moderately to densely villous-ciliate, midvein more pronounced distally, ± translucent, apex acute to rounded, villous-ciliate; outer phyllaries narrowly ovate, 1.5-2 × ca. 0.8 mm; inner phyllaries oblong, 3-6 × 1.8-1.2 mm, base hardened. Ray florets 10-14 or more, purple, tube apex and lamina base strigose, lamina 6-7(-9) × 1-1.5 mm, eglandular; disk florets yellow, (4-)5 mm, tube base flared, tube apex and proximal limb hairy, minutely stipitate glandular, limb campanulate, ca. 3.2 mm, lobes spreading, narrowly triangular, curved, ca. 1.5 mm, apically sparsely hairy, moderately to densely minutely stipitate glandular. Achenes (immature) oblong, slightly compressed, 2-3 mm, sparsely strigillose, sparsely minutely stipitate glandular, 2-ribbed (± translucent). Pappus 4-seriate, ± reddish; outermost bristles few, slender, 0.5-0.6 mm; outer bristles slender, 2-2.3 mm; inner bristles few, ca. 3 mm, acute; innermost bristles ca. 4 mm, weakly clavate. Fl. and fr. Jul-Oct.

Shaded places in valleys of low mountains or canal banks; 800-1600 m. Anhui, Henan, NW Hubei, S Shaanxi, Sichuan.

62.中甸艾（植物研究）缅甸艾（植物研究）

Artemisia zhongdianensis Y. R. Ling in Bull. Bot. Res. 8(3): 1, Tab. 1: 1-8. 1988. ——A. burmanica auct., non Pamp.: Y. R. Ling in Bull. Bot. Res. 4(2): 20, fig. 4. 1-9. 1984.

多年生草本。高80-100厘米或更长，紫褐色或淡褐色，纵棱明显，分枝多，开展，枝长10-20厘米或更长；茎、枝被平贴的、短柔毛。叶纸质，上面密被白色腺点及小凹穴，并被稀疏平贴的短柔毛，腺点易脱落，叶背密被灰白色微成蛛丝状的短柔毛及稀疏白色腺点；茎下部叶花期凋谢；中部叶宽卵形或卵形，长6-8厘米，宽5-8厘米，二（至三）回羽状分裂，第一回全裂，每侧有裂片4-5枚，裂片近菱形或卵状椭圆形，长3-4厘米，宽1.5-2.5厘米，第二回为羽状深裂，小裂片椭圆形、披针形或线状披针形，长1-2.5厘米，宽3-5毫米，先端钝尖，并有短尖头，边全缘或有1-2枚深或浅小锯齿，裂片基部宽楔形，下延，中轴有狭翅，叶柄长1.5-3厘米，基部有小型假托叶；上部叶略小，一至二回羽状深裂，无柄；苞片叶羽状深裂或全裂或为3-5深裂或全裂，裂片披针形或线状披针形。头状花序多数，近圆形或宽卵圆形，直径1-2毫米，无梗或有极短梗，下垂，基部有细小线形的小苞叶，在分枝的小枝上排成穗状花序或穗状花序状的总状花序，在分枝上排成复穗状花序，而在茎上组成开展、具多级分枝的圆锥花序；总苞片3-4层，外层总苞片狭小，外层、中层总苞片卵形或长卵形，初时背面被淡黄色平贴的短柔毛，后稀疏，背面有绿色中肋，边狭膜质，内层总苞片长卵形，半膜质，背面近无毛；雌花5-6朵，花冠狭管状，檐部具2裂齿或无裂齿，花柱长，伸出花冠外，先端2叉，叉端钝尖；两性花6-8朵，花冠管状，花药线形，先端附属物尖，长三角形，基部钝；花柱与花冠近等长，先端2叉，叉端截形并有睫毛。瘦果小，长圆形或倒卵形。花果期9-12月。

产云南西北部（中甸）；生于海拔2700米附近林缘、缓坡灌丛中。模式标本采自云南中甸。

作者查阅了A. burmanica Pamp.的模式标本 (J. L. Lace, 4385,存英国邱植物园标本馆），发现该种体态、叶、头状花序等特征与多花A. myriantha Wall. ex Bess.同，是该种的晚出异名，但与中甸艾迥异。

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