in the past month or so, a bunch of dry herb on a lawn at the wetland park has drawn my attention. the pods are so curiously looking, almost like some toy jewelry.
It spent me some time to look up this plant – beggar weed. From the information I traced back in my photo inventory. Then I found I have met this herb back in summer.
familia: fabaceae 豆科| subfamilia: faboideae 蝶形花亞科| tribus: desmodieae | subtribus: desmodiinae | genus: desmodium 山螞蝗屬 | species: desmodium tortuosum wikispecies
- 莢果具五六圓形莢節，腹背兩縫線於節間縊縮而呈念珠狀，被灰黃色鉤狀小柔毛 。《香港自然生態論壇》
- erect plant to 1.8 m tall, sparsely branched.
- leaves with 3 leaflets. stem covered with sticky hairs
- inflorescence a raceme with pea-shaped flowers in pairs, standard petal usually pink to bluish.
- pod flattened, 3-7 segments equally indented on both sides; covered in hooked hairs. each seed in a separate compartment