生活型

herb

形態特徵

• Perennial herbs. Stems herbaceous, slender, 10–25(–70) cm long, simple or sometimes branched, lower part elongate prostrate, often rooting at nodes, ascending, covered with articulate, crisp rusty hairs; internodes 3–10 mm long.
• Leaves sessile, lowest and middle ones opposite, narrowly elliptic, 4–8×1.5–2.75 mm, apex obtuse, base broadly cuneate, often somewhat auriculate and subamplexicaul, margins obviously recurved, subcoriaceous, upper surface glabrous and green, lower surface brown, sparsely hairy as on stem, otherwise glabrous; midrib impressed adaxially, manifestly elevated beneath, lateral nerves invisible; uppermost Leaves subverticillate, ovate, to 10 mm long, 4.5 mm wide, base subrounded.
• Flowers few (often 2 or 3), in uppermost axils. Pedicel less than 1 mm long. Calyx ca. 5 mm long, glabrous, divided almost to base, lobes lanceolate, apex acute. Corolla yellow, ca. 10 mm long, widely open; tube 1 mm long; lobes obovate-elliptic, to 5 mm wide, apex rounded, dotted with minute, reddish glands. Filaments connate at base into a ring, ring 0.5 mm long, free part ca. 1 mm long; anthers ca. 1.25 mm long, longitudinally dehiscent. Ovaries globose, glabrous. Styles to 3.5 mm long,
• Capsules ca. 2.5 mm in diam., brown, dehiscing by 5 valves.
• Lysimachia chingshuiensis is a very distinct species in sect. Nummularia, somewhat similar to L. deltoidea Wight of NE India, Sri Lanka, and SW China, but distinct in its subsessile, subcoriaceous Leaves and Flowers congested in the apices of the stem and

物候

Flowers: May-Jun., fruits: Jul.-Aug.

分布

• 台灣 : known only from exposed slopes on Chingshuishan, a metamorphosed limestone mountain in Taroko National Park, very rare.

引證標本

HUALIEN: Chingshuishan, Leu 1780 (Holotype!); Ho 1250.

參考文獻

• KAO, Muh-Tsuen and PENG, Ching -I, Flora of Taiwan, second edition 4: 63. 1989.  (Fl. Taiwan 2nd edit.)