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续随子Euphorbia lathyris

时间:2013-09-10 12:44来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):续随子 学名( Scientific Name ): Euphorbia lathyris L. 英文名( English Common Name ): moleplant 别名( Chinese Common Name ): 千金子 异名( Synonym ): Tithymalus cataputia Garsault Tithymalus lathyris (L.
中文名(Chinese Name):续随子
学名(Scientific Name):Euphorbia lathyris L.
英文名(English Common Name):moleplant
别名(Chinese Common Name):千金子
异名(Synonym):Tithymalus cataputia Garsault  Tithymalus lathyris (L.) Hill  Galarhoeus decussatus (Salisb.) Gray  Galarhoeus lathyris (L.) Haw.  Keraselma lathyris (L.) Raf.  Epurga lathyris (L.) Fourr.  Euphorbia spongiosa Ledeb. ex Schrank  Euphorbion lathyrum (L.) St.-Lag.  Euphorbia lathyris var. minor Hook. & Arn.
科属(Family & Genus):大戟科(Euphorbiaceae)大戟属
形态特征(Description):二年生草本,全株无毛。根柱状,长20厘米以上,直径3-7毫米,侧根多而细。茎直立,基部单一,略带紫红色,顶部二歧分枝,灰绿色,高可达1米。叶交互对生,于茎下部密集,于茎上部稀疏,线状披针形,长6-10厘米,宽4-7毫米,先端渐尖或尖,基部半抱茎,全缘;侧脉不明显;无叶柄;总苞叶和茎叶均为2枚,卵状长三角形,长3-8厘米,宽2-4厘米,先端渐尖或急尖,基部近平截或半抱茎,全缘,无柄。花序单生,近钟状,高约4毫米,直径3-5毫米,边缘5裂,裂片三角状长圆形,边缘浅波状;腺体4,新月形,两端具短角,暗褐色。雄花多数,伸出总苞边缘;雌花1枚,子房柄几与总苞近等长;子房光滑无毛,直径3-6毫米;花柱细长,3枚,分离;柱头2裂。蒴果三棱状球形,长与直径各约1厘米,光滑无毛,花柱早落,成熟时不开裂。种子柱状至卵球状,长6-8毫米,直径4.5-6.0毫米,褐色或灰褐色,无皱纹,具黑褐色斑点;种阜无柄,极易脱落。花期4-7月,果期6-9月。
分布(Distribution):产我国大部分省区,栽培或逸为野生,广泛分布或栽培于欧洲、北非、中亚、东亚和南北美洲。
用途(Use):种子含油量高达50%,可制肥皂和润滑油
引自中国植物志英文版FOC Vol. 11 Page 290, 301
Euphorbia lathyris Linnaeus, Sp. Pl. 1: 457. 1753.
续随子 xu sui zi| Euphorbiaceae  | Euphorbia
Herbs, annual, erect, up to 1(-1.5) m tall. Rootstock a simple taproot, slightly swollen in seedlings, up to more than 20 cm × 3-7 mm thick; lateral roots thin and branched. Stem single, gray-green, smooth and glabrous. Leaves opposite, decussate; stipules absent; petiole absent; leaf blade linear-lanceolate, 6-15(-20) × 0.4-2.5 cm, glabrous, base ± clasping stem, margin entire, apex acuminate or acute; midrib prominent adaxially, lateral veins inconspicuous. Inflorescence a terminal pseudumbel, often compound, eventually broad and lax; primary involucral leaves (2-)4 or 5(or 6), slightly yellowish green, narrowly elliptic to ovate-elliptic, somewhat unequal, margin entire, base rounded, primary rays (3 or)4 or 5; cymes regularly many forked; cyathophylls 2, ovate-triangular, 3-8 × 2-4 cm, base truncate to clasping, margin entire, apex acuminate or acute. Cyathium subsessile; involucre subcampanulate, 2.5-4 × 2.5-3.5(-5) mm, lobes triangular-oblong, less repanded or lobed; glands 4, dark brown, transversely oblong-reniform with a club-shaped horn at each tip. Male flowers many, exserted from involucre. Female flower exserted from cup; ovary smooth, glabrous; styles free, slender and long, caducous; style arms 2-lobed. Capsule trigonous-globose, ca. 10 × 13-17 mm, smooth, glabrous. Seeds ovoid-globose to barrel-shaped, 5-8 × 4-6 mm, brown or gray-brown, with black-brown spots on surface, sharply rugulose; caruncle ca. 1.5 mm wide, yellowish, sessile, easily lost. Fl. Apr-Jul. 2n = 20*.
Weed of cultivation. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan, Zhejiang [N Africa, America, Asia, Europe].
Euphorbia lathyris is a very isolated species that is adventive in many parts of the world. It is probably native only in the Mediterranean region.
The seeds are used medicinally. The seed oil (ca. 50%) can also be widely used in industry, and there has been some work on the development of Euphorbia lathyris as a commercial crop, particularly by the selection of forms with indehiscent fruits.




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