Mexico 2013 Flora de San Luis Potosi y Queretaro

Voucher:AN 409

Rubiaceae
Spermacoce verticillata L.

Location:San Luis Potosi, Cerro de San Miguelito, above Privadas de Pedregal. Canada de Lobos.
Coordinates: 22°05'34" N, 100°00'18" W Alt: 2250m

Erect or ascending herb, 10-15 cm tall. Flowers white. Anthers blue at apex.
Disturbed sandy area grazed by horses and donkeys. Geology: igneous rock. Open area with Poaceae.

Identification Notes: Verified with Borhidi, Attila L. 2012 'Rubiáceas de México' 2nd edition. Corolla lobes glabrous, calyx lobes 2-3 triangular, hairy, leaflets linear, less than 2 mm wide.

Nova, J.A. de #409      11 June 2013

morphological details

capitulum capitulum flower flower flower flower

flower section flower section

stipules stipules

stipules stipules

adaxial leaf surface adaxial leaf surface    
field picture
habitat
Herbarium voucher
Herbarium voucher

Other field pictures

inflorescence
inflorescence
leaves