For Ambrosia psilostachya
, Baptisia australis, Solidago canadensis, and Vernonia baldwinii, most measures of size and sexual reproduction were significantly greater in bison-grazed habitats while vegetative reproduction was not reduced in bison-grazed habitats.
(2005) were Eragrostis trichodes, Heterotheca camporum, Ambrosia psilostachya, Rhus aromatica, and Opuntia humifusa.
(2005) reported 17 species in their study plots of the mature dry sand prairie, with Ambrosia psilostachya, Opuntia humifusa, Schizachyrium scoparium and Dichanthelium villosissimum having the highest importance values.
Hojas subsesiles o con un corto peciolo alado, pinnadas, con lobulos oblongos Ambrosia psilostachya
Involucro fructifero con 4 tuberosidades muy cortas (excepcionalmente inerme) Ambrosia psilostachya
Other herbaceous dominants included Texas broomweed, hog potato (Hoffmannseggia glauca), and western ragweed (Ambrosia psilostachya
) (Table 1).
These slopes presently contain a disturbed dry sand prairie having high species diversity, including some taxa commonly associated with mature dry sand prairies: Ambrosia psilostachya
, Dichanthelium villosissimum, Opuntia humifusa, and Schizachyrium scoparium.
The most common NRF species are Ambrosia psilostachya
(western ragweed), Vernonia baldwinii (western ironweed), Achillea millefolium (yarrow), and Oxalis dillenii (woodsorrel).
7.8 [+ or -] 24.3 2.1 [+ or -] 6.3 Ambrosia psilostachya
7.3 [+ or -] 13.4 0.2 [+ or -] 0.4 Rubus sp.
The most important forbs were Commelina erecta, Lesquerella lindheimeri, Nothoscordum bivalve, Ambrosia psilostachya, and Desmanthus virgatus.
Dominant forbs included Mexican hat (Ratibida columnaris), western ragweed (Ambrosia psilostachya), sumpweed (Iva annua), loosestrife (Lythrium californicum), and clay violet (Ruellia nudiflora).
High quality forbs were clay violet (Ruellia nudiflora), Mexican hat (Ratibida columnaris), and western ragweed (Ambrosia psilostachya).