Ranunculus omiophyllus

Common name: Round-leaved Crowfoot
Scientific name: Ranunculus omiophyllus
Genus: Ranunculus 毛茛屬
Family: Family: Ranunculaceae 毛茛科, buttercup family

Remarks*: 

Origin: native

Date: 24th Aug

[4033] Prostate annual or perennial, growing on mud or in shallow water.
No finely divided submerged leaves. 
The above cluster has no flowers yet.

[4042]

[4042_1] Transparent stipules.

[4021] Leaves 8-30 mm wide, lobed less than half way into 3-5 main lobes, lobes narrowest at base.

(vs lobed less than half way into 3-5 main lobes,  lobes broadest at base in R. hederaceus, ivy-leaved crowfoot)

(vs leaves lobed more than half way into 3 main lobes in R. tripartitus, three-lobed crowfoot)

[4047_2] Underside of the leaf and stipules.

[4047_1] The above photo showing the branching to leaves and flower. Vegetative bud at the tip of the stem and stipules at the branches could be clearly seen..

[4025] Clusters with flowers.

[4023_2] Flower is erecting from the water.

[4023]

[4036] 5 petals, 8-10 stamens, numerous carpels. 

[4037_2] Flower of early stage. Stamens are short and anthers are clearly shown/

[4024_1] Flowers 8-12 mm diameter

[4040] Petals about 2 times as long as sepals. Sepals are greenish and reflexed.

[4024_2] This is a flower of later stage. Stamens are elongated and carpels with stigmas are clearly shown in the middle of the flower.