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FOC | Family List | FOC Vol. 4 | Cupressaceae | Juniperus

10. Juniperus squamata Buchanan-Hamilton ex D. Don in Lambert, Descr. Pinus. 2: 17. 1824.

高山柏 gao shan bai

Shrubs erect or procumbent, or small trees to 12 m tall; branches ascending or horizontally spreading; branchlets densely arranged, straight or curved, usually short, not angled. Leaves in whorls of 3, spreading or ascending, sometimes nearly appressed, needlelike, straight or slightly curved, (2.5-) 5-10 × 1-1.5 mm, slightly concave, with white stomatal bands adaxially, obtusely ridged with longitudinal, thin groove on ridge or at base abaxially, base decurrent, apex acute or acuminate. Pollen cones ovoid, 3-4 mm; microsporophylls 9-12, each with 3 pollen sacs. Seed cones black or bluish black when ripe, ovoid or subglobose, 4-8 × 4-6 mm, 1-seeded. Seeds ovoid, 3.5-6 × 2-5 mm, ridged, with resin pits.

Forests, thickets, valleys, and roadsides in mountain areas; 1600-4500 m. S Anhui, W Fujian, S Gansu, E Guizhou, W Hubei, Shaanxi, Sichuan, Taiwan, Xizang, Yunnan [Afghanistan, Bhutan, N India, Kashmir, N Myanmar, Nepal, Pakistan, Sikkim]

Four varieties occur in China: var. squamata and var. fargesii are commonly recognized, whereas the other two were recently described from single collections and need further study, given the wide geographical range and considerable variation found in the foliage of this species.

1 Leaves straight or slightly curved.   (2)
+ Leaves strongly curved.   (3)
2 (1) Leaves ascending or nearly appressed, usually short and broad   10a var. squamata
+ Leaves spreading or ascending, usually long and narrow   10b var. fargesii
3 (1) Leaves ascending or nearly appressed, densely arranged, internodes not exposed   10c var. parviflora
+ Leaves spreading, loosely arranged, internodes exposed   10d var. hongxiensis

Lower Taxa


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