卷耳Cerastium arvense subsp. strictum
中文名（Chinese Name）：卷耳
学名（Scientific Name）：Cerastium arvense subsp. strictum Gaudin
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Cerastium arvense var. angustifolium Fenzl Cerastium glabellum Turcz. Cerastium arvense var. strictum (Gaudin) W. D. J. Koch Cerastium arvense f. minus Beck Cerastium arvense var. ophiticola Raymond Cerastium arvense var. viscidulum Gremli Cerastium nervosum Naudin ex Gay
科属（Family & Genus）：石竹科Caryophyllaceae卷耳属Cerastium
形态特征（Description）：多年生疏丛草本，高10-35厘米。茎基部匍匐，上部直立，绿色并带淡紫红色，下部被下向的毛，上部混生腺毛。叶片线状披针形或长圆状披针形，长1-2.5厘米，宽1.5-4毫米，顶端急尖，基部楔形，抱茎，被疏长柔毛，叶腋具不育短枝。聚伞花序顶生，具3-7花；苞片披针形，草质，被柔毛，边缘膜质；花梗细，长1-1.5厘米，密被白色腺柔毛；萼片5，披针形，长约6毫米，宽1.5-2毫米，顶端钝尖，边缘膜质，外面密被长柔毛；花瓣5，白色，倒卵形，比萼片长l倍或更长，顶端2裂深达1/4-1/3；雄蕊10，短于花瓣；花柱5，线形。蒴果长圆形，长于宿存萼1/3，顶端倾斜，10齿裂；种子肾形，褐色，略扁，具瘤状凸起。花期5-8月，果期7-9月。
分布（Distribution）：产河北、山西、内蒙古、陕西、甘肃、宁夏、青海、新疆、四川。生于海拔1 200-2 600米高山草地、林缘或丘陵区。中欧、北欧、北极、俄罗斯、哈萨克、朝鲜、日本、蒙古、北美也有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 6 Page 37
Cerastium arvense subsp. strictum Gaudin, Fl. Helv. 3: 245. 1828.
卷耳 juan er | Caryophyllaceae | Cerastium
Cerastium arvense var. angustifolium Fenzl; C. arvense var. strictum W. D. J. Koch; C. strictum sensu Haenke (1789), not Linnaeus (1753).
Herbs perennial, 15--35 cm tall. Stems sparsely caespitose, creeping proximally, erect distally, retrorsely purplish red hairy, distally both retrorsely hairy and glandular pubescent, or glabrous throughout. Leaves linear to narrowly lanceolate, 0.5--2.5 cm × 1--4 mm, pilose or glabrous, base cuneate, amplexicaul, margin sometimes ciliate, apex acute or acuminate; leaf axils with dwarf, sterile shoots. Cyme terminal, 3--7-flowered; bracts leaflike, lanceolate, pilose, margin scarious. Pedicel 1--1.5 cm, densely white glandular pubescent. Sepals lanceolate, ca. 6 × 1.5--2 mm, abaxially densely villous, margin membranous. Petals obovate, ca. 2 × as long as sepals, 2-lobed for 1/4--1/3 their length. Stamens shorter than petals. Styles 5. Capsule cylindric, ca. 1.3 × as long as calyx, 10-toothed. Seeds numerous, brown, reniform, slightly compressed, tuberculate. Fl. May--Aug, fr. Jul--Sep. 2n = 36.
Sand dunes under forests of Pinus sylvestris var. mongolica, forest margins, sand dune scrub, hillsides, grassy mountain valleys and hilltops, steppes, ditches; 600--4300 m. Gansu, Hebei, Henan, Jiangxi, Jilin, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Yunnan [Japan, Kazakhstan, Korea, Mongolia, Russia; Europe, North and South America].
In FRPS, Cerastium arvense var. arvense was recorded from China, as well as var. angustifolium (a synonym of the widespread subsp. strictum ) and var. glabellum . The identity of Chinese material as subsp. arvense needs confirmation: this taxon is native to W Europe and has been introduced into several other temperate regions, where it grows as a weed in grassy places. Its chromosome number is tetraploid (2 n = 72), as compared with diploid (2 n = 36) in subsp. strictum . These two subspecies are very difficult to separate morphologically, especially in the herbarium, but a chromosome count can provide a strong indication of identity. Cerastium arvense var. glabellum (Turczaninow) Fenzl (in Ledebour, Fl. Ross. 1: 413. 1842, based on C. glabellum Turczaninow, Bull. Soc. Imp. Naturalistes Moscou 15: 614. 1842) is probably only a glabrous form of subsp. strictum .
（责任编辑：徐晔春）
学名（Scientific Name）：Cerastium arvense subsp. strictum Gaudin
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Cerastium arvense var. angustifolium Fenzl Cerastium glabellum Turcz. Cerastium arvense var. strictum (Gaudin) W. D. J. Koch Cerastium arvense f. minus Beck Cerastium arvense var. ophiticola Raymond Cerastium arvense var. viscidulum Gremli Cerastium nervosum Naudin ex Gay
科属（Family & Genus）：石竹科Caryophyllaceae卷耳属Cerastium
形态特征（Description）：多年生疏丛草本，高10-35厘米。茎基部匍匐，上部直立，绿色并带淡紫红色，下部被下向的毛，上部混生腺毛。叶片线状披针形或长圆状披针形，长1-2.5厘米，宽1.5-4毫米，顶端急尖，基部楔形，抱茎，被疏长柔毛，叶腋具不育短枝。聚伞花序顶生，具3-7花；苞片披针形，草质，被柔毛，边缘膜质；花梗细，长1-1.5厘米，密被白色腺柔毛；萼片5，披针形，长约6毫米，宽1.5-2毫米，顶端钝尖，边缘膜质，外面密被长柔毛；花瓣5，白色，倒卵形，比萼片长l倍或更长，顶端2裂深达1/4-1/3；雄蕊10，短于花瓣；花柱5，线形。蒴果长圆形，长于宿存萼1/3，顶端倾斜，10齿裂；种子肾形，褐色，略扁，具瘤状凸起。花期5-8月，果期7-9月。
分布（Distribution）：产河北、山西、内蒙古、陕西、甘肃、宁夏、青海、新疆、四川。生于海拔1 200-2 600米高山草地、林缘或丘陵区。中欧、北欧、北极、俄罗斯、哈萨克、朝鲜、日本、蒙古、北美也有。
用途（Use）：
引自中国植物志英文版：FOC Vol. 6 Page 37
Cerastium arvense subsp. strictum Gaudin, Fl. Helv. 3: 245. 1828.
卷耳 juan er | Caryophyllaceae | Cerastium
Cerastium arvense var. angustifolium Fenzl; C. arvense var. strictum W. D. J. Koch; C. strictum sensu Haenke (1789), not Linnaeus (1753).
Herbs perennial, 15--35 cm tall. Stems sparsely caespitose, creeping proximally, erect distally, retrorsely purplish red hairy, distally both retrorsely hairy and glandular pubescent, or glabrous throughout. Leaves linear to narrowly lanceolate, 0.5--2.5 cm × 1--4 mm, pilose or glabrous, base cuneate, amplexicaul, margin sometimes ciliate, apex acute or acuminate; leaf axils with dwarf, sterile shoots. Cyme terminal, 3--7-flowered; bracts leaflike, lanceolate, pilose, margin scarious. Pedicel 1--1.5 cm, densely white glandular pubescent. Sepals lanceolate, ca. 6 × 1.5--2 mm, abaxially densely villous, margin membranous. Petals obovate, ca. 2 × as long as sepals, 2-lobed for 1/4--1/3 their length. Stamens shorter than petals. Styles 5. Capsule cylindric, ca. 1.3 × as long as calyx, 10-toothed. Seeds numerous, brown, reniform, slightly compressed, tuberculate. Fl. May--Aug, fr. Jul--Sep. 2n = 36.
Sand dunes under forests of Pinus sylvestris var. mongolica, forest margins, sand dune scrub, hillsides, grassy mountain valleys and hilltops, steppes, ditches; 600--4300 m. Gansu, Hebei, Henan, Jiangxi, Jilin, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Yunnan [Japan, Kazakhstan, Korea, Mongolia, Russia; Europe, North and South America].
In FRPS, Cerastium arvense var. arvense was recorded from China, as well as var. angustifolium (a synonym of the widespread subsp. strictum ) and var. glabellum . The identity of Chinese material as subsp. arvense needs confirmation: this taxon is native to W Europe and has been introduced into several other temperate regions, where it grows as a weed in grassy places. Its chromosome number is tetraploid (2 n = 72), as compared with diploid (2 n = 36) in subsp. strictum . These two subspecies are very difficult to separate morphologically, especially in the herbarium, but a chromosome count can provide a strong indication of identity. Cerastium arvense var. glabellum (Turczaninow) Fenzl (in Ledebour, Fl. Ross. 1: 413. 1842, based on C. glabellum Turczaninow, Bull. Soc. Imp. Naturalistes Moscou 15: 614. 1842) is probably only a glabrous form of subsp. strictum .
（责任编辑：徐晔春）
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