Dichrocephala integrifolia

茯苓菜

Dichrocephala integrifolia (L. f.) Kuntze

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

Kuntze. 1891. Revisio Generum Plantarum 1: 333. (Rev. Gen. Pl.)

台灣首次記錄發表文獻

Peng, Chung & Li. 1998. Flora of Taiwan, second edition 4: 933. (Fl. Taiwan 2nd edit.)

異名

Dichrocephala bicolor (Roth) Schltdl.

Kitamura. 1941. Acta phytotaxonomica et geobotanica eng 10: 29. (Acta Phytotax. Geobot.)
Dichrocephala latifolia (Lam.) DC.

Henry. 1896. A List of Plants from Formosa 52. (List Pl. Formos.)

各語言俗名

中

茯苓菜、土茯苓、豬菜草、魚眼草、一粒珠
台

Ti chhái chháu、It liàp chu
原

Kagahutu (Atayal)、Zyazyoai (Paiwan)
日

ぶくりようさい、ぶくりゅうさい

參考文獻

Yang. 1982. A list of plants in Taiwan. (List Pl. Taiwan)
W. C. Lin. 2005. Wild flowers of Taiwan - the 1300 species found in the lower elevation. (Wild flowers of Taiwan)

特徵描述

生活型

herb

形態特徵

Annual herbs. Stems erect, sometimes depressed, 12–50 cm tall, branched or not, more or less minutely pubescent.
Leaves thin, lower and middle ovate to elliptic, apex obtuse to acute, base obtuse; petiole winged, 1–6 cm long, lyrately lobed, terminal lobe largest, broadly ovate, lateral lobes 1 or 2 pairs, distinct, oblong to obovate, regularly or irregularly crenate-serrate, blade 3–12 cm long, 2–4.5 cm wide, pilose or nearly glabrous on both surfaces.
Heads 2–3 mm long, 2–3 mm across at anthesis, in terminal or axillary panicles, usually 2 or 3 times branched. Involucral bracts in 1 or 2 series, ca. 1 mm long, oblong to ovate, acute, midrib and central area green, margins thinly fimbriate-scarious, inner bracts somewhat shorter. Receptacle depressed globose. Outer florets many, in 7 or 8 rows, corolla tubular, 0.3–0.5 mm long, whitish to yellowish, style arms exserted. Disc florets ca. 10, corolla funnelform to campanulate, greenish to purplish, deeply 4-lobed at tip, lobes broadly ovate, stamens 4.
Achenes obovate, compressed, truncate, apex viscid glandular punctate, 1–1.5 mm long, ca. 0.5 mm wide, glabrous, pale brown, ribbed on both sides. Pappus absent or of 2 minute setae on disc florets. Heads 5–8 mm in diam. at maturity.
Chromosome number, 2n = 18 (Peng & Hsu, 1978).

物候

Fl. Apr-Dec.

分布

台灣 : A common weed in Taiwan, especially on clay soils at low to mid elevations.
世界 : Tropical and subtropical Asia and Africa.

引證標本

TAIPEI: Shihting, Peng 12877. ILAN: Taipingshan, Peng 7878. TAOYUAN: Yangmei Dairy Station, Peng 3104. NANTOU: Tzuchung, Peng 11423. CHIAYI: Alishan, Hsu 3887. PINGTUNG: Tahanshan, Yang 1228. TAITUNG: Lanyu Is., Peng 10810; Hsiangyang, Peng 11846. HUALIEN: Yenhai Forest Trail, Peng 13002.