Lactuca watsoniana, Trelease

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 330

publication ID

https://doi.org/10.5281/zenodo.293764

persistent identifier

https://treatment.plazi.org/id/90236A28-9C42-F544-FE99-F91E15744DBA

treatment provided by

Plazi

scientific name

Lactuca watsoniana
status

 

7. L. watsoniana Trelease View in CoL , Ann. Rep. Missouri Bot. Gard. 8: 127 (1897).

Erect perennial. Stem 30-200 cm. Leaves sinuate-dentate, pruinose, arachnoid-lanate beneath; lower 30x 15 cm, ovate, obtuse, contracted into a winged petiole; upper ovate-lanceolate, sessile, sagittate-amplexicaul. Inflorescence a corymbose panicle. Capitula with c. 8 florets. Ligules pale blue. Achenes 4-6 mm; body ovate, 5- to 8-ribbed, brownish-green with yellowish spots; beak as long as body. Scrub in volcanic craters. • Açores. Az.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Asterales

Family

Asteraceae

Genus

Lactuca

Loc

Lactuca watsoniana

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. 1976
1976
Loc

L. watsoniana

Trelease 1897: 127
1897
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