Spermacoce alata Aubl.

Bukit Tagar, Selangor, Malaysia.

 

Spermacoce alata Aubl. Rubiaceae. CN: [Malay - Rumput setawar], Broadleaf-button weed. Widespread, naturalized from tropical America. Branched herb; stem fleshy, rectangular, ca 60 cm tall. Leaves opposite, elliptical, rather thick, broadest above the middle, tip broadly and shortly pointed, base tapered, variable in size, ca 2.5-5 cm long and 2,5 cm wide, hairy on both sides, short leaf stalk. Leaf-base joined with cup-shaped stipules with bristles on edges. Flower heads from leaf-axils ca 0.6-1.2 cm, through, white, hairy calyx of four sepals, corolla-tube white with lilac petals; stamens and stigma forked. Fruit hairy, splitting into two pairs.

 

Synonym(s):

Borreria alata (Aubl.) DC.

Borreria latifolia (Aubl.) K. Schum.

Borreria scabrida DC.

Spermacoce aspera Aubl.

Spermacoce bartlingiana Hemsl.

Spermacoce caerulescens Aubl.

Spermacoce latifolia Aubl.

Spermacoce scabrida Pohl ex DC. [Invalid]

... and many more. See www.theplantlist.org/tpl1.1/record/kew-193377

 

Ref and suggested reading:

FRIM Flora Database

www.theplantlist.org/tpl1.1/record/kew-193377

 

 

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