migratory bird season has begun. went to the wetland park over the weekend. checked out the birds. but the biggest harvest that day was the plants.
not long after entering the park area, around the streams stood these primrose willows. they are not rare, but their prominent posture drew my attention and the flashy flowers. they are an emergent plant from the onagraceae family. onagraceae are flowering plants, and they usually have four sepals and petals.
check out also the reddish brown cylindrical fruit and velvety leaves. apparently this plant has strong character in the appearance of every of its parts.
毛草龍 primrose willow (ludwigia octovalvis) – 植物界 plantae kingdom | 被子植物門 magnoliophyta division | 雙子葉植物綱 magnoliopsida class | （未分級 unclassified） 薔薇分支 rosids | 桃金娘目 myrtales order | 柳葉菜科 onagraceae family | 丁香蓼屬 ludwigia genus | 種 species：毛草龍 l. octovalvis 《維基百科》
- 毛草龍分布在非洲、南美洲、台灣島、太平洋島嶼、亞熱帶、亞洲、大洋洲以及中國大陸的廣東、香港、廣西、雲南、福建、海南、浙江、江西等地，生長於海拔750米以下的地區，多生長在田邊、湖塘邊、溝谷旁以及開曠濕潤處 《維基百科》
- willow primrose is an erect, stout, well-branched robust herb of damp or flooded areas. it may be woody at the base and shrubby at times, growing up to 4 m. it has long stiff hairs sometimes appressed and oriented in one direction.
- stems may be red-brown.
- alternately arranged leaves are light green, may turn red upon aging, narrowly lanceshaped to ovate, densely velvety both sides, narrowed at base and tip, 12- 22 veins on each side of midrib. leaf-stalk is short.
- sepals are 4, ovate or lanceshaped. flowers occur singly in leaf axils and at branch ends. petals are 4, pale to bright yellow.
- fruit is a thin-walled, 4-angled, narrowly cylindrical, 8-ribbed capsule, 3-5 cm long, 2-8 mm in diameter, velvety, terminated by persistent sepals, color by vary from green to pale or reddish brown, or purplish, stalk up to 1 cm. flowers of india
有關 2012.11.18 濕地公園行 / posts on wetland park visit on nov 18 2012:
- 《毛草龍 primrose willow》
- 《不是蜂鳥是天蛾 this is hummingbird hawk-moth, not the bird》
- 《豬屎豆 broad-leaved rattlepod》
- 《數雀仔 counting the birds》
- 《濕地公園中的幾棵結果植物 a few fruiting plants at wetland park》