Showing posts with label Reseda 木樨草屬. Show all posts
Showing posts with label Reseda 木樨草屬. Show all posts

Monday, 14 August 2023

Reseda lutea 黃木犀草, 細葉木犀草

Common name: Wild Mignonette
Scientific name: Reseda lutea 黃木犀草, 細葉木犀草
Genus: Reseda 木樨草屬, 木犀草屬
Family: Resedaceae 木樨草科, 木犀草科 mignonette family

Remarks*:

Origin: native

Date: 16th July

387 An erect, much-branched, more or less glabrous biennial or perennial, can reach up to 75cm.

386 Stem leaves deeply lobed, with narrow segments. (Rosette leaves soon withering.)

391 The inflorescence with flowers open from the bottom.

392 This inflorescence has already the lowest flowers turning into fruits.

384 Closer look of the inflorescence showing different stages of flowers an fruits.

375 Flower 6mm across; back and side petals lobed (see the white structures above). A lot of stamens surrounding the central three-lobed stigma.

380 Another view of the flower showing the white deeply cleft petals, a lot the stamens and the central three-lobed stigma. 

378 The white petals could be clearly seen deeply cleft.

379-1 Side view of a young flower showing the sepals and the white cleft petals. There are 6 sepals and petals.

379-2 Six sepals could be clearly seen above.

384 A later stage of flower with some of the petals start withering.

381-1

381-2 The central stigma with the ovary is swollen, turning into fruit. 

373 Fruiting....turning to an oblong capsule.

374 Old split open capsules.

Saturday, 7 August 2021

Reseda luteola 黃木犀草, 淡黃木犀草

Common name: Weld
Scientific name: Reseda luteola 淡黃木犀草
Genus: Reseda 木樨草屬, 木犀草屬
Family: Resedaceae 木樨草科, 木犀草科 mignonette family

Origin: Archaeophyte (established before 1500 AD). It has a Eurosiberian Southern-temperate distribution.

Date: 16th July


A tall plant, can reach up to 150 cm




Most of the leaves are simple and entire. Some are pinnately-lobed but the side-lobes are few and near the base of the leaf. 

A very long raceme. Flowers open from the bottom first. The upper flowers start to bloom whereas the bottom ones are fruiting.

Flowers 4-5mm across. There are 4 sepals and petals. Back and side petals (cream structures) are deeply-cut and forked into strips.



 Fruits in form of spherical capsules are forming at the bottom of this raceme. 


seeds could be seen inside the split open fruits (21st July)