Mexico 2013 Flora de Durango y Jalisco

Voucher:SG 504

Asteraceae
Hofmeisteria schaffneri (A.Gray) King & H.Rob.

Location:Durango, Espinazo del Diablo.
Coordinates: 23°39'33" N, 105°44'20" W Alt: 2502m

Herb. Flowers pink. Phyllaries purple tinged. Leaves aromatic when crushed.
Open Pinus and Quercus forest. Growing in stream on rocks in full sun.

Identification Notes: Verified with McVaugh, R. Compositae. Flora Novo-Galiciana 12: 1-1157. 1984. tribe Eupatorieae. Semi woody plant. Leaves alternate, dissected and glabrescent. Capitula solitary on long peduncle. Phyllaries in several rows broadly acute outside, lanceolate inside. Florets all tubular, exserted and pinkish. Anthers producing little pollen, stigmas long exserted, glabrous and spathulate. Cypsela obscurely 5-angled and strigose. Pappus of 5 barbed erect awns with few very small intervening scales. Receptacle flat, glabrous and without scales. Very close and possibly intergrading with H. urenifolia var. urenifolia.

González, S. #504      21 June 2013

morphological details

capitulum capitulum phyllaries phyllaries florets florets

capitulum section capitulum section

ovaries ovaries

pappus pappus

disc florets disc florets ovary ovary pappus pappus
corolla corolla styles styles androecium section androecium section
receptacle receptacle cypsela cypsela cypsela cypsela
cypsela cypsela adaxial leaf surface adaxial leaf surface abaxial leaf surface abaxial leaf surface

additional pictures

capitulum capitulum
field picture
habitat
Herbarium voucher
Herbarium voucher

Other field pictures

habitat
flowering plant
capitulum
capitulum