学名(拉丁名) | Chamaerhodos |
中文名 | 地蔷薇属 |
命名人 | Bge. |
中文科名 | 蔷薇科 |
类型 | genus |
拉丁科名 | Rosaceae |
学名(拉丁名) | Chamaerhodos |
类型 | genus |
拉丁科名 | Rosaceae |
学名(拉丁名) | Chamaerhodos |
中文名 | 地蔷薇属 |
类型 | genus |
拉丁科名 | Rosaceae |
学名(拉丁名) | Chamaerhodos |
中文名 | 地蔷薇属 |
中文科名 | 蔷薇科 |
类型 | genus |
拉丁科名 | Rosaceae |
学名(拉丁名) | Chamaerhodos |
发表年份 | 1829(年) |
类型 | genus |
拉丁科名 | Rosaceae |
1 | 茎常单一,高2O-50米,草质,基部稍木质;花瓣和萼片等长或稍长;心皮10-15;二年生草本。 | 地蔷薇 Chamaerhodos erecta |
1 | 茎多数,丛生,高5-30厘米,基部木质;花瓣比萼片短或长;心皮4-8;多年生草本或亚灌木。 (2) | |
2 | 基生叶二至三回羽状3裂。 (3) | |
2 | 基生叶一回羽状3裂。 (4) | |
3 | 茎高10-30厘米,有疏生具腺短柔毛及长柔毛;基生叶小裂片条形,先端圆钝或锐尖,有茎生叶;萼筒宽钟形;花瓣倒卵形,先端微缺,比萼片长;心皮4-6。 | 灰毛地蔷薇 Chamaerhodos canescens |
3 | 茎高6-10厘米,有短腺毛及长柔毛;基生叶小裂片长圆伏匙形,先端圆钝,有或无茎生叶;萼筒钟形或倒圆锥形;花瓣披针状匙形或楔形,先端圆钝,比萼片短或稍长;心皮多为6-8。 | 砂生地蔷薇 Chamaerhodos sabulosa |
4 | 亚灌木,常成垫状;茎高5-6厘米,有长柔毛及短腺毛;基生叶3深裂,裂片条形;花单生或3-5朵成聚伞花序。 | 阿尔泰地蔷薇 Chamaerhodos altaica |
4 | 多年生草本,不成垫状;茎高5-18厘米,有柔毛或无毛;基生叶3全裂,裂片窄条形;花多数,成二歧聚伞花序,再形成圆锥花序。 | 三裂地蔷 Chamaerhodos trifida |
1 | Herbs biennial or annual, usually 1-stemmed, 20–50 cm tall, slightly woody at base; petals equaling or slightly longer than sepals; carpels 10–15. (1) | C. erecta |
1 + | Herbs perennial or subshrubs, many stemmed, tufted, 5–30 cm tall, woody at base; petals shorter or longer than sepals; carpels 4–8. | (2) |
2 (1) | Radical leaves 2 or 3 times 3-parted. | (3) |
2 (1) + | Radical leaves once 3-parted or 3-fid. | (4) |
3 (2) | Flowering stems 10–30 cm tall, sparsely glandular pubescent and villous; ultimate segments of radical leaves linear, apex rounded or acute; cauline leaves present; hypanthium broadly campanulate; petals obovate, longer than sepals, apex emarginate; carpels 4–6. (2) | C. canescens |
3 (2) + | Flowering stems 6–10 cm tall, glandular pubescent and villous; ultimate segments of radical leaves oblong-spatulate, apex obtuse; cauline leaves present or absent; hypanthium campanulate or obconic; petals lanceolate-spatulate or cuneate, shorter or slightly longer than sepals, apex rounded; carpels usually 6–8. (3) | C. sabulosa |
4 (2) | Subshrubs, 5–6 cm tall, villous and glandular pubescent; radical leaves 3-parted with linear segments; flowers solitary or 3–5 in cymes. (4) | C. altaica |
4 (2) + | Herbs perennial, 5–18 cm tall, pilose or glabrous; radical leaves 3-fid with narrowly linear segments; flowers many, in dichasial panicles. (5) | C. trifida |
38.地蔷薇属——Chamaerhodos Bge.
Bge. in Ldh. Fl. Alt. 1:429. 1829 et in Ann. Sci. Nat. Bot. ser. 2. 19: 176-178. 1843; Benth. et Hook. f. Gen. Pl. 1:621. 1865; Focke in Engler & Prantl, Nat. Pflanzenfam. 3 (3): 36. 1888; Muravieva in Bull. Jard. Bot. Princ. URSS 27: 30-52. f. 1-3. 1928; Hutch. Gen.Flow. Pl. 1:199. 1964. ——Sibbaldia L. Sp. Pl. 1: 284. 1753. p. p.
草本或亚灌木,具腺毛及柔毛。叶互生,三裂或二至三回全裂,裂片条形;托叶膜质,贴生于叶柄。花茎直立,纤细;花小,成聚伞、伞房或圆锥花序,少有单生;花萼宿存,萼筒钟形、筒形或倒圆锥形,萼片5,直立;花瓣5,白色或紫色;雄蕊5,和花瓣对生;花盘围绕萼筒基部,边缘肥厚,具长刚毛;心皮4-10或更多,花柱基生,脱落,柱头头状,胚珠1个,着生在子房基部。瘦果卵形,无毛,包裹在宿存花萼内;种子直立。
本属的模式种:阿尔泰地蔷薇Chamaerhodos altaica(Laxm.)Bge.
约8种,分布于亚洲和北美。我国产5种。