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紫色悬钩子Rubus irritans Focke

紫色悬钩子Rubus irritans Focke

别名:悬钩子;莓子;红莓;甘扎嘎日;紫花悬钩子;悬钩木;

科名:蔷薇科 Rosaceae

属名:悬钩子属 Rubus

《中国植物志》第37卷060页
  20.紫色悬钩子 图版4:6-7
  Rubus irritans Focke, Bibl. Bot. 72(2): 192. 1911. ——R. purpureus Bge. ex Hook. f. Fl. Brit. Ind. 2: 338. 1878.
  矮小半灌木或近草本状,高约10-60厘米;枝被紫红色针刺、柔毛和腺毛。小叶3枚,稀,枚,卵形或椭圆形,长3-5厘米,宽2-3.5厘米,顶端急尖至短渐尖,基部宽楔形至近圆形,顶生小叶基部近截形,上面具细柔毛,下面密被灰白色绒毛,边缘有不规则粗锯齿或重锯齿;叶柄长3-5厘米,顶生小叶柄长1-2厘米,侧生小叶几无柄,具紫红色针刺、柔毛和腺毛;托叶线形或线状披针形,具柔毛和腺毛。花下垂,常单生或2-3朵生于枝顶;花梗长1.5-3厘米,被针刺、柔毛和腺毛;苞片与托叶相似,但稍小;花直径1.5-2厘米;花萼带紫红色,外面被紫红色针刺、柔毛和腺毛;萼筒浅杯状;萼片长卵形或卵状披针形,长1-1.5厘米,顶端渐尖至尾尖,花后直立;花瓣宽椭圆形或匙形,白色,具柔毛,基部有短爪,短于萼片;雄蕊多数,花丝线形,几与花柱等长或稍长;雌蕊多数,子房具灰白色绒毛。果实近球形,直径1-1.5厘米,红色,被绒毛;核较平滑或稍有网纹。花期6-7月,果期8-9月。
  产甘肃、四川、青海、西藏东南部。生山坡林缘或灌丛中,海拔2000-4500米。印度西北部、克什米尔地区、巴基斯坦、阿富汗、伊朗也有分布。
  本种和库叶悬钩子R. sachalinensis Levl.很相近,区别在于后者为灌木或小灌木;花常5-9朵成伞房状花序,稀单生;花直径约1厘米;萼片披针形,长约1厘米;果实直径约1厘米。
形态特征:矮小半灌木或近草本状,高约10—60厘米;枝被紫红色针刺、柔毛和腺毛。小叶3 枚,稀5枚,卵形或椭圆形,长3—5厘米,宽2—3.5厘米,顶端急尖至短渐尖,基部宽楔形 至近圆形,顶生小,叶基部近截形;上面具细柔毛;下面密被灰白色绒毛,边缘有不规则粗锯 齿或重锯齿;叶柄长3—5厘米,顶生小叶柄长1—2厘米,侧生小叶几无柄,具紫红色针刺、 柔毛和腺毛;托叶线形或线状披针形,具柔毛和腺毛。花下垂,常单生或2—3朵生于枝顶; 花梗长1.5-3厘米,被针刺;柔毛和腺毛;苞片与托叶相似;但稍小;花直径1.5—2厘米; 花萼蒂紫红包;外面被紫红色针刺、柔毛和腺毛;萼筒浅杯状;萼片长卵形或卵状披针形, 长1-1.5厘米,顶端渐尖至尾尖,花后直立;花瓣宽椭回形或匙形,白色,具柔毛;基部有 短爪,短于萼片;雄蕊多数,花丝线形,几与花柱等长或稍长;雌蕊多数,子房具灰白色绒 毛。果实近球形;直径1-1.5厘米,红色,被绒毛;核较平滑,或稍有网纹。 花期6-7月, 果期8-9月.
产地分布:产甘肃;四川、青海;西藏东南部;生山坡林缘或灌丛中,海拔2000—45Q0米。印度 西北部、克什米尔地区,巴基斯坦、阿富汗、伊朗也有分布。
本种提示:本种和库叶悬钩子R.Sachalinensls Levl.很相近,区别在于后者为灌木或小灌木;花常5—9朵成伞房状花序,稀单生;花直径约1厘米;萼片披针形,长约1厘米;果实直径约1厘米;
参考文献:Rubus irritans Focke,Bibl.Bot.72(2):192.1911.——R.Purpureus Bge.Ex Hook.F·F1.Brit.Ind.2:338.1878.
亚组概述:Subsect.Idaeanthi(Foeke) yu et.Lu,植物分类学报20(3): 296.1982.—Sect.Pungentes Focke,Bibl.Bot。72(2):160.1911 Cr 83:40.1914 P. P.——Sect. Ldaeanthi Focke,l.C.72(2) :171.1911et 83:43.,1914·p·.p、

《Flora of China》 Vol. 9 (2003)
Rubus irritans  Focke
紫色悬钩子   zi se xuan gou zi
Rubus purpureus Bunge ex J. D. Hooker.
Subshrubs or herblike, 10–60 cm tall. Branchlets brown or reddish brown to purplish red, with purple needle-like prickles, soft hairs, and stipitate glands. Leaves imparipinnate, 3-foliolate, rarely 5-foliolate; petiole 3–5 cm, petiolule of terminal leaflet 1–2 cm, lateral leaflets subsessile, with purple needle-like prickles, soft hairs, and glandular hairs; stipules greenish brown, linear or linear-lanceolate, 7–9 mm, pubescent, with intermixed glandular hairs; blade of leaflets ovate or elliptic, 3–5 × 2–3.5 cm, abaxially densely gray tomentose, adaxially puberulous, base broadly cuneate to subrounded, subtruncate on terminal leaflet, margin unevenly coarsely serrate or doubly serrate, apex acute to shortly acuminate. Inflorescences terminal, nutant, 1–3-flowered; bracts linear, 5–7 mm, pubescent, with intermixed glandular hairs. Pedicel 1.5–3 cm, prickly, pubescent, with stalked glands. Flowers 1.5–2 cm in diam. Calyx tinged purplish red, with purple needle-like prickles, soft hairs, and stalked glands; tube shallowly cupular; sepals erect, narrowly ovate or ovate-lanceolate, 1–1.5 cm × 3–5 mm, apex acuminate to caudate. Petals white, broadly elliptic or spatulate, 8–11 × 5–7 mm, shorter than sepals, pubescent, base shortly clawed. Stamens numerous, slightly shorter than petals; filaments linear. Pistils nearly as long as or slightly shorter than stamens; ovary gray tomentose. Aggregate fruit red, subglobose, 1–1.5 cm in diam., tomentose; pyrenes smooth or somewhat reticulate. Fl. Jun–Jul, fr. Aug–Sep.
Slopes, forest margins, thickets; 2000--4500 m. Gansu, Qinghai, Sichuan, SE Xizang [Afghanistan, Bhutan, NW India, Kashmir, Pakistan].

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