9. Tribe ANTHEMIDEAE

67. Artemisia roxburghiana Besser, Bull. Soc. Imp. Naturalistes
Moscou 9: 57. 1836.
灰苞蒿 hui bao hao
Subshrubs, (20–)50–120 cm tall, arachnoid pubescent;
rootstock horizontally creeping, ca. 1 cm thick. Leaves abaxially
densely arachnoid tomentose, adaxially sparsely pubescent
and gland-dotted, or glabrescent. Lowermost and middle stem
leaves: petiole 1.5–2(–3) cm; leaf blade ovate or oblong-elliptic,
6–10(–18) × 4–6(–10) cm, 2-pinnatisect; segments (2 or)3 or 4
pairs, elliptic or oblong; lateral lobes with 1–3 pairs of lobules;
lobules lanceolate or linear-lanceolate, 0.5–1.5 × 2–2.5 mm;
rachis narrowly winged. Uppermost leaves and leaflike bracts
pinnatisect or 3–5-lobed or entire; lobes or entire bracts linearlanceolate
or lanceolate. Synflorescence a narrow panicle to
25 × 3 cm, sometimes with extra panicles from upper nodes;
branches simple, to 4 cm, erect, rather uniform in length; bracts
linear, ca. as long as involucre. Capitula solitary or in dense
glomerules of 2 or 3, subsessile, erect to ± patent. Involucre
ovoid, subglobose or hemispheric, rarely oblong, 2–3 mm in
diam.; outer phyllaries purplish tinged, purple or gray arachnoid
pubescent, scarious margin broadly hyaline, apex obtuse. Florets
20–38, yellow or purple-brown tinged, all fertile. Marginal
female florets 5–7; corolla filiform. Disk florets bisexual 10–
20(–30); corolla limb yellow or purple. Achenes brown, obovoid
or oblong, ca. 1.25 mm. Fl. and fr. Aug–Oct. 2n = 18, 36.
Roadsides, slopes, dry canyons, grasslands, waste areas, terraces;
700–3900 m. S Gansu, Guizhou, W Hubei, Qinghai, S Shaanxi, W Sichuan,
Xizang, Yunnan [Afghanistan, N India, Nepal, Pakistan, N Thailand].
1a. Phyllaries gray arachnoid
pubescent ........................................ 67a. var. roxburghiana
1b. Phyllaries purple, sparsely
arachnoid pubescent ....................... 67b. var. purpurascens
67a. Artemisia roxburghiana var. roxburghiana
灰苞蒿(原变种) hui bao hao (yuan bian zhong)
Artemisia dubia Wallich ex Besser var. jacquemontiana
Pampanini; A. eriocephala Pampanini; A. hypoleuca Edgeworth;
A. indica Willdenow var. exilis Pampanini; A. revoluta
Edgeworth; A. roxburghiana var. acutiloba Pampanini; A. roxburghiana
var. kansuensis Pampanini.
Phyllaries gray arachnoid pubescent.
Roadsides, slopes, dry canyons, grasslands, waste areas, terraces;
700–3900 m. S Gansu, Guizhou, W Hubei, Qinghai, S Shaanxi, W Sichuan,
Xizang, Yunnan [Afghanistan, N India, Nepal, N Thailand].
67b. Artemisia roxburghiana var. purpurascens (Jacquemont
ex Besser) J. D. Hooker, Fl. Brit. India 3: 326. 1881.
紫苞蒿 zi bao hao
Artemisia purpurascens Jacquemont ex Besser, Bull. Soc.
Imp. Naturalistes Moscou 9: 60. 1836; A. strongylocephala
Pampanini.
Phyllaries purple, sparsely arachnoid pubescent.
Dry canyons, grasslands; 2000–3800 m. W Sichuan, Xizang [N
India, Nepal, Pakistan].
ANTHEMIDEAE
701
68. Artemisia leucophylla C. B. Clarke, Compos. Ind. 162.
1876.
白叶蒿 bai ye hao
Artemisia vulgaris Linnaeus var. leucophylla Turczaninow
ex Ledebour, Fl. Ross. 2: 586. 1845, nom. illeg. superfl.; A.
leucophylla f. luxurians Pampanini; A. leucophylla f. minuta
Pampanini; A. leucophylla var. pusilla Pampanini; A. leucophylla
f. simplicifolia Pampanini; A. leucophylla f. tenuisecta
(Regel) Pampanini; A. mongolica (Fischer ex Besser) Nakai
var. krascheninnikovii Pampanini, p.p.; A. mongolica var. leucophylla
(C. B. Clarke) W. Wang & H. T. Ho; A. obscura Pampanini
var. rigida Pampanini; A. vulgaris var. kamtschatica
Besser; A. vulgaris var. minor Ledebour; A. vulgaris var. tenuisecta
Regel.
Herbs, perennial, 35–70 cm tall, arachnoid pubescent; rhizome
creeping, with short branches from upper parts. Leaves
abaxially densely gray arachnoid tomentose, adaxially sparsely
arachnoid pubescent and gland-dotted. Lower and middle stem
leaves: petiole 1–2 cm; lowermost leaf blades elliptic or ovateelliptic
in outline, 5–8 × 4–7 cm, 1- or 2-pinnatipartite or pinnatisect;
segments 3(or 4) pairs, variously rhombic, elliptic, or
oblong; lobules minute, 5–10 × 4–5 mm. Middle and upper
stem leaves smaller, less divided, blade pinnatisect; segments
2 or 3(or 4) pairs; lobes linear-lanceolate, linear, elliptic-lanceolate,
or lanceolate, 10–15 × 2–3 mm. Leaflike bracts 3–5-sect or
entire. Synflorescence a ± dense narrowly conical panicle. Involucre
oblong or ovoid, (2–)2.5–3.5(–4) mm in diam.; phyllaries
greenish or violet, arachnoid pubescent. Marginal female florets
5–8. Disk florets 6–13, bisexual. Achenes obovoid. Fl. and fr.
Jul–Oct. 2n = 18.
Slopes, roadsides, forest margins, grasslands, riverbanks, lakeshores;
low elevations to 4000 m. Gansu, Guizhou, Hebei, Heilongjiang,
Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi,
Sichuan, Xinjiang, Xizang, Yunnan [Korea, Mongolia, Russia (W
Siberia)].
69. Artemisia nujianensis (Y. Ling & Y. R. Ling) Y. R. Ling,
Bull. Bot. Res., Harbin 8(4): 26. 1988.
怒江蒿 nu jiang hao
Artemisia yunnanensis Jeffrey ex Diels var. nujianensis Y.
Ling & Y. R. Ling, Acta Phytotax. Sin. 18: 505. 1980.
Subshrubs, 10–20 cm tall, gray pubescent. Leaves abaxially
densely tomentose, adaxially incanous pubescent. Lower
and middle stem leaves: petiole 0.7–1 cm; leaf blade ovate, oblong,
or suborbicular, 1–1.5 × 0.8–1 cm, pinnatipartite; segments
1 or 2 pairs, elliptic or oblong, 3–4 × ca. 2 mm, 1- or 2serrate,
apex obtuse. Uppermost leaves and leaflike bracts 3partite
or -cleft, or entire; lobes or entire bracts oblong or elliptic.
Synflorescence a lax, broad panicle; branches simple racemes
to 10 cm, with sterile lower nodes, with leaflike bracts.
Capitula up to 10, well spaced, long pedunculate. Involucre
ovoid or subglobose, 2–2.5 mm in diam.; phyllaries densely
arachnoid pubescent. Marginal female florets 7–9. Disk florets
10–14, bisexual. Achenes obovoid. Fl. and fr. Jul–Nov.
● River valleys, brushlands; 2200–2300 m. E Xizang, E Yunnan.