Pteronia adenocarpa Harvey 1865
Creators: name: Bello, Anifat O.
name: Boatwright, James S.
name: Bank, Michelle Van Der
name: Magee, Anthony R.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Pteronia
Pteronia adenocarpa

description: Key to species of the Pteronia adenocarpa group
1. Cypselae glabrous-glossy, glandular and/or hairy, when hairy then hairs evenly distributed on the surface ...................................... ............................................................................................................................................................ remaining species of Pteronia
- Cypselae hairy, hairs strictly confined to the base .............................................................................................................................2
2. Branches glabrous ..............................................................................................................................................................................3
- Branches hairy ....................................................................................................................................................................................5
3. Branches greyish-white; leaves slightly keeled; cypselae glabrous on the surface.......................................................... 6. P. viscosa
- Branches greenish; leaves flattened; cypselae glandular on the surface ............................................................................................4
4. Leaves narrowly ovate, free, glabrous, apex with prominent cluster of bristles; capitula pedunculate; pappus biseriate, straight..... ................................................................................................................................................................................... 2. P. armatifolia
- Leaves oblanceolate or obovate, connate at base, punctate, apex without prominent cluster of bristles; capitula sessile; pappus multiseriate with a tortuous band near the base........................................................................................................ 1. P. adenocarpa
5. Involucral bracts puberulent; cypselae glandular on the surface; corolla brown ................................................. 5. P. stoehelinoides
- Involucral bracts and cypselar surface glabrous; corolla yellow........................................................................................................6
6. Branches setose; cypselae oblong ...................................................................................................................... 4. P. hutchinsoniana
- Branches pubescent; cypselae ovate............................................................................................................................... 3. P. elongata
description: Published as part of Bello, Anifat O., Boatwright, James S., Bank, Michelle Van Der & Magee, Anthony R., 2021, Taxonomic revision of the Pteronia adenocarpa group (Astereae, Asteraceae), pp. 73-88 in Phytotaxa 523 (1) on page 75, DOI: 10.11646/phytotaxa.523.1.4, http://zenodo.org/record/5571985