Mentha arvensis var. piperascens

薄荷

naturalized

Mentha arvensis L. var. piperascens Malinv. ex Holmes

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

Holmes, Pharm. J. London, ser. 3 13: 381. 1882.

台灣首次記錄發表文獻

Chang-Yang, Su, Chiang & Hsieh, Taiwania 67(1): 1. 2022.

異名

Dysophylla glabra Hayata

Hayata, Materials for a flora of Formosa 226. 1911. (Mat. Fl. Formos.)
Mentha neptoides auct. non Lej.

Hayata, Icones Plantarum Formosanarum 8: 103. 1919. (Icon. Pl. Formos.)
Mentha viridis auct. non L.

Kodo, Memoirs of the Faculty of Science and Agriculture Taihoku Imperial University 2: 89. 1929. (Mem. Fac. Sci. Agr. Taihoku Imp. Univ.)
Mentha arvensis L. ssp. piperascens (Malinv.) Hara

Hara, Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 6: 368. 1956. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot.)
Mentha canadensis L.

Huang & Cheng, Flora of Taiwan 4: 484. 1978. (Fl. Taiwan)

各語言俗名

中

單列萼薄荷.
日

はつか.
台

Pòh hô.

參考文獻

Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 152. 2010.
Huang et al., Flora of Taiwan, second edition 6: 97. 2003. (Fl. Taiwan 2nd edit.)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Herbs, to 1 m tall, covered with septate hairs; stems erect or rarely procumbent, square, puberulent, densely so on angles, often covered with glandular dots.
Leaves petiolate; petioles puberulent, to 1 cm long; blades 2–8 cm long, 0.2–2 cm wide, elliptic, narrowly ovate to ovate, base cuneate, sometimes oblique, apex acute, margins serrate, both surfaces puberulent, densely so on veinlets, covered with glandular dots, veinlets 6–8-pairs, prominent beneath.
Inflorescences of clustered flowers in leaf axils, globose, often umbel-like in lower parts; bracteoles narrowly elliptic, nearly glabrous on upper surface, puberulent and covered with glandular dots below. Flowers pedicellate; pedicels to 2 mm long, minutely hairy; calyx 1.5–2 mm long, campanulate, puberulent, covered with glandular dots, 5-toothed, teeth equal, spine-like, minutely hairy or puberulent in throat, linear-triangular, divided to 1/2 or more its length; corolla 2.5–3 mm long, campanulate, tube glabrous, limb covered with small hairs, 4-lobed, upper lobe largest, broadly ovate, emarginate, other 3 lobes ovate, throat minutely hairy; stamens 4, equal, inserted in throat; anthers 2-celled, parallel; stigma bifid.
Fruitlets ovoid, apex obtuse, smooth, ca. 0.8 mm long.

分布

世界 : Sakhalin, Korea and Japan.

引證標本

TAIPEI: Nankang, Cheng 505. TAOYUAN: Ryuonpo, Sasaki s. n. 1910. HSINCHU: Simada 4346*. MIAOLI: Gorihai, Simada 4152. TAICHUNG: Tungshih, Sasaki s. n. 1922. PINGTUNG: Sekizan, Sasaki s. n. 1919.