- Source: Aristolochia thwaitesii
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Aristolochia thwaitesii, also known as hai bian ma dou ling (Chinese: 海边马兜铃), is a species of plant in the family Aristolochiaceae. It is endemic to China.
Distribution and habitat
A. thwaitesii is known only from Hong Kong and Zuhai in Guangdong province, China. It grows in bamboo forests, thickets, rocky crevices, and on mountain slopes.
Description
A. thwaitesii is an upright subshrub with hairy stems. The leathery leaves are spatulate to oblong-oblanceolate, measuring 10–15 cm (3.9–5.9 in) by 2.5–3 cm (0.98–1.18 in). The undersides of the leaves are densely covered with brown hairs, while the upper surface is hairless. The inflorescence is a hairy raceme that emerges from the base of the plant and bears three to seven flowers. The flowers are curved tubes, yellow-green in colour and densely covered with brown hairs. The fruit is a dehiscent capsule measuring 3–5 cm (1.2–2.0 in) by 2–2.5 cm (0.79–0.98 in).
Ecology
A. thwaitesii is known to flower from April to May and to bear fruit from August to September.