Mentzelia pachyrhiza I.M.Johnst.

, J. Arnold Arbor. 21(1): 71 (1940). BHL
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:157486-2
Publication
Journal of the Arnold Arboretum. Cambridge, MA
Collation
21(1): 71
Date of Publication
25 Jan 1940
Family as entered in IPNI
Loasaceae

Type Information

Collector Team
I. M. Johnston 7717
Locality
18 km.north of Parras, foot of steep sandstone slope
Collection Date
16 Sep 1938
Type Herbaria
isotype GH
Distribution Of Types
Coahuila (Mexico, Northern America)

Remarks

Etymology: Just below the surface of the soil the root becomes abruptly enlarged to form a fusiform or narrowly ellipsoidal mass of fleshy storage tissue. A single sparsely branching stem arises from the summit of this thickened portion of the root and the slender simple taproot continues down from its base. It is unique in the genus.

Links

Same citation as
Mentzelia pachyrhiza I.M.Johnst., J. Arnold Arbor. 21: 71 (1940).