Eastern Mojave Vegetation Coll. No. 1034, Helminthotheca echioides  
 

 

Home Page
If you have a question or a comment about this photograph you may write to me at: tas4@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address.
  Asteraceae Helminthotheca echioides
Scanned 28 Dec 2014.

Coll. No. 1034, 31 August 2013, characters observed while keying: Herbaceous annual or biennial, to 35 cm., rigid hairs with hooked branches at tip; Sap slightly milky (seen mostly at base of phyllaries); Leaves basal and cauline, alternate, 11 cm x 18 mm wide, oblanceolate, slightly glandular, margins entire, not spine-tipped; Involucre 14 mm; Phyllaries in 4-5 series, the outer series are wide and stand away from the rest, the inner series are narrow, appendaged at tip; Receptacle epaleate; Flowers all rays; Pappus of well developed bristles, ±equal, broader at base, plumose; Corolla yellow, readily withering; Fruit 3 mm x 0.5 mm wide, brown, annular ridges or decoration giving the appearance of a small insect pupa.

Article records that use this photograph:

Other photos about Species - Asteraceae or Helminthotheca echioides.

 


[Home Page]

Date and time this page was prepared: 4/7/2024 5:10:23 PM