9. Tribe ANTHEMIDEAE

726
Rocky terraces, canyons, dry valleys, roadsides; 1300–2500 m.
SW Xinjiang [Kyrgyzstan].
150. Artemisia wellbyi Hemsley & H. Pearson, J. Linn. Soc.,
Bot. 35: 183. 1902.
藏沙蒿 zang sha hao
Artemisia salsoloides Willdenow var. wellbyi (Hemsley &
H. Pearson) Ostenfeld & Paulsen; Oligosporus wellbyi (Hemsley
& H. Pearson) Poljakov.
Subshrubs, 15–28 cm tall, with a thick stock, densely gray
or yellowish and sericeous-pubescent. Lower and middle stem
leaves: petiole 5–20 mm. Lower leaves ovate or elliptic-ovate,
1.5–2.5 × 0.8–1.8 cm, 2-pinnatisect; segments 3 or 4 pairs; lobules
linear or linear-lanceolate, 4–5 × 0.5–2 mm. Middle stem
leaves elliptic-ovate, 10–20 × 5–15 mm, 1(or 2)-pinnatisect;
segments 3(or 4) pairs; lobules 4–10(–18) × 1–1.5 mm. Uppermost
leaves and leaflike bracts 3- or 5-sect or entire. Synflorescence
a lax, narrow panicle. Capitula initially dense, later lax.
Involucre ovoid or subglobose, 2.5–3.5(–4) mm in diam.; phyllaries
puberulent or glabrescent. Marginal female florets 5–15.
Disk florets 8–16, bisexual. Achene obovoid. Fl. and fr. Jul–
Nov.
Riverbanks, lakeshores, hills, rocky slopes, alpine steppes, alpine
meadows; 3600–5300 m. Xizang [N India].
151. Artemisia waltonii J. R. Drummond ex Pampanini, Nuovo
Giorn. Bot. Ital., n.s., 34: 707. 1927.
藏龙蒿 zang long hao
Shrubs, 30–60 cm tall, much branched, puberulent or glabrescent.
Lower stem leaves: petiole 0.2–0.5 cm; leaf blade
ovate-oblong or oblong, 2–2.5 × 1.5–1.8 cm, grayish puberulent,
2-pinnatisect or -partite; segments 3 pairs. Middle stem
leaves sessile; leaf blade 1(or 2)-pinnatisect or -partite; lobules
linear, linear-lanceolate, or falcate-lanceolate, 3–15 × 1.5–2.5
mm, margin nearly revolute, apex obtuse or acuminate, mucronulate;
midrib convex abaxially, concave adaxially. Uppermost
leaves 3–5-partite; leaflike bracts lanceolate or falcate.
Synflorescence a broad panicle. Capitula ± sessile or shortly pedunculate,
nodding. Involucre globose to broadly ovoid, 2.5–
3(–3.5) mm in diam. Marginal female florets 18–29. Disk florets
20–30, male; corolla limb puberulent. Achenes oblong or
obovoid. Fl. and fr. May–Sep.
● Roadsides, riverbanks, shrublands, slopes, steppes, dry valleys,
waste areas; 3000–4300 m. S Qinghai, W Sichuan, Xizang, W Yunnan.
1a. Lobes of leaves linear or linear-lanceolate,
3–8 mm, obtuse; capitula sessile .......... 151a. var. waltonii
1b. Lobes of leaves falcate-lanceolate,
8–15 mm, acuminate; capitula
shortly pedunculate ........................... 151b. var. yushuensis
151a. Artemisia waltonii var. waltonii
藏龙蒿(原变种) zang long hao (yuan bian zhong)
Lobes of middle stem leaves linear or linear-lanceolate, 3–
8 mm, apex obtuse. Capitula sessile.
● Roadsides, riverbanks, shrublands, slopes, steppes, dry valleys;
3000–4300 m. S Qinghai, W Sichuan, Xizang, W Yunnan.
ANTHEMIDEAE
151b. Artemisia waltonii var. yushuensis Y. R. Ling, Bull. Bot.
Res., Harbin 8(4): 49. 1988.
玉树龙蒿 yu shu long hao
Lobes of middle stem leaves falcate-lanceolate, 8–15 mm,
apex acuminate. Capitula shortly pedunculate.
● Slopes, waste areas; middle to high elevations. S Qinghai, N Xizang.
152. Artemisia gyangzeensis Y. Ling & Y. R. Ling, Acta Phytotax.
Sin. 18: 510. 1980.
江孜蒿 jiang zi hao
Subshrubs, 20–30 cm tall; branches capitate, 4–5 cm, puberulent,
glabrescent. Lower and middle stem leaves: petiole 1–
2 cm; leaf blade ovate or oblong, 3.5–4.5 × 2–3 cm, 2-pinnatisect;
segments 3 pairs, 8–12 × ca. 5 mm; lobules 1 or 2 pairs,
linear-lanceolate or linear, 5–10 × 1.5–2 mm, base attenuate,
margin revolute, midvein white, prominent abaxially. Uppermost
leaves pinnatisect; leaflike bracts 3-sect or entire. Synflorescence
a narrow panicle. Involucre globose or ovoid-globose,
2.5–3.5 mm in diam. Marginal female florets 3–8. Disk florets
10–20, male. Achenes obovoid or ovoid-elliptic. Fl. and fr. Jul–
Sep.
● Slopes; ca. 3900 m. S Gansu, Qinghai, E Xizang.
153. Artemisia xigazeensis Y. R. Ling & M. G. Gilbert, sp. nov.
日喀则蒿 ri ka ze hao
Type: China. Xizang: N of Phari, 1882, Dr. King’s Collector
54 (holotype, K).
Paratypes: China. Xizang: near Phari, 14,500 ft., Sep
1838, B. J. Gould 1621 (K); Dochen Lake Camp, ca. 15,000 ft.,
24 Jun 1939, B. J. Gould 2194 (K); Valley ca. 10 km NNE of
Lhasa, 4,150 m, 2 Aug 1989, B. Dickoré 3628 (K). Qinghai: E
shore of Kokonor (Qinghai Hu), 10,700 ft., Sep 1925, J. F. Rock
13385 (K).
Plantae suffruticosae; caules multi erecti vel ascendentes,
ramis ascendentibus brevibus angustis; indumentum ex trichomatibus
medifixis adpressis constans. Folia 1(ad 2)-pinnatisecta,
segmentis 3- ad 5-jugatis asymmetrice 3(ad 5)-lobatis,
lobulis ultimis oblanceolatis usque anguste oblongis interdum
falcatis 4–7(–10) × 0.9–1.5 mm. Synflorescentia paniculata
anguste cylindrica, ramis erectis brevibus. Involucrum ovoideum
usque ovoideo-campanulatum 2.5–4 × 1.5–2.5 mm, phyllariis
glabris, exterioribus costa crassiuscula. Flosculi marginales
5 ad 8, ei disci 5 ad 12 ovario vestigiali.
Plant subshrubby, 7–22 cm tall; rootstock a deep woody
taproot to ca. 1 cm thick; stems becoming very many with age,
erect or ascending, basally medifixed appressed pubescent, upper
parts glabrescent; branches ascending, short, narrow. Basal
and lower stem leaves usually withered by anthesis; pseudostipules
absent; petiole 1–2.5 cm; leaf blade ± oblong to oblanceolate
in outline, 1–2.5 × 0.6–1.5 cm, 1(–2)-pinnatisect, abaxially
adpressed pubescent, adaxially glabrous or glabrescent;
segments 3–5-paired, asymmetrically 3(–5)-lobed; ultimate lobules
oblanceolate to narrowly oblong, sometimes falcate, 4–