Hypochaeris

Echeverría, María L., Alonso, Sara I. & Comparatore, Viviana M., 2017, Survey of the vascular plants of Sierra Chica, the untouched area of the Paititi Natural Reserve (southeastern Tandilia mountain range, Buenos Aires province, Argentina), Check List 13 (6), pp. 1003-1036: 1027

publication ID

http://doi.org/ 10.15560/13.6.1003

persistent identifier

http://treatment.plazi.org/id/03AA7235-FFA6-FF8C-FF01-F94E83F1FA57

treatment provided by

Marcus

scientific name

Hypochaeris
status

 

Genus Hypochaeris   L.

Hypochaeris neopinnatifida C.F. Azevedo-Gonçalves  

& Matzenbacher

Figure 36

Hypochaeris neopinnatifida C.F. Azevedo-Gonçalves & Matzenbacher (2006)   : 158 — Flora Argentina (2017); Tropicos (2017).

Hypochaeris rosengurttii Cabr. var. pinnatifida (Speg.) Cabrera (1941)   : 393 — Cabrera (1963): 397.

Hypochaeris variegata (Lam.) Baker var. pinnatifida Spegazzini (1896)   : 40.

Hieracium variegatum Lamark (1786)   : 362.

Cryptophytes; native with wide distribution in the Southern Cone Region of South America. Vulnerable, reasons unknown ( Delucchi 2006).

Characteristics. Perennial herb, with latex, rhizomes and simple or bifurcated erect stems, 10–40 cm tall. Leaves arrange in a basal rosette, with oblanceolate shape, lobate to pinnatisect margin, attenuate base and acute apex. Inflorescence: solitary discoid capitulums with yellow florets. Achenes with a short thick beak, ca 0.5 mm in diameter, crowned by a pappus with 1-series plumose hairs.

Comments. This is an infrequent species in the study area. It grows in full sunlight conditions in shallow soils at the summit. Hypochaeris neopinnatifida   and H. pampasica Cabrera   differ from the other Hypochaeris species   in Buenos Aires province by having achenes with beaks that are shorter than the seminiferous portion, and a 1-series pappus hair disposition. Particularly, H. pampasica   has a thinner beak than H. neopinnatifida   .

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Asterales

Family

Asteraceae

Loc

Hypochaeris

Echeverría, María L., Alonso, Sara I. & Comparatore, Viviana M. 2017
2017
Loc

Hypochaeris neopinnatifida C.F. Azevedo-Gonçalves & Matzenbacher (2006)

Azevedo-Goncalves CF & Matzenbacher NI 2006: 158
2006
Loc

Hypochaeris rosengurttii Cabr. var. pinnatifida (Speg.)

Cabrera AL 1963: 397
Cabrera AL 1941: 393
1941
Loc

Hypochaeris variegata (Lam.) Baker var. pinnatifida

Spegazzini C 1896: 40
1896