Haplopappus


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Haplopappus

a North American genus in the plant family Asteraceae (Compositae); plants contain a toxic alcohol, tremetol, and ingestion of the plant over a period causes a stiff gait, severe tremor and final collapse and death. Includes H. fruticosus, H. hartwegii, H. heterophyllus, H. tenuisectus. Called also Isocoma wrightii, Bigelowia rusbeyi, jimmy weed, rayless goldenrod, burrow weed. See also eupatoriumrugosum.
References in periodicals archive ?
At an altitude of 1,476 ft (450 m), at the park's northern tip, the woody vegetation is restricted to patches dominated by Aextoxicon punctatum and Mirceugenia correaefolia together with Rhaphithamnus spinosus, separated by areas of shrub and herbaceous vegetation dominated by Lythrum hyssopifolium, Distichlis spicata, Haplopappus foliosus, Berberis, Kageneckia oblonga and Fuchsia lycioides.
Pollen competition and relatedness in Haplopappus section Isopappus.
Autotetraploidy in Haplopappus spinulosus hybrids: evidence from natural and synthetic tetraploids.
Sustentado por Chuquiraga avellanedae, Haplopappus diplopappus, Senecio ganganensis, Anarthrophyllum ornithopodum, Pappostipa ibarii y Junellia patagonica.
Interspecific hybridization in Haplopappus and its bearing on chromosome evolution in the Blepharodon section.
In 1954, the forb species, Erigeron canadensis, Haplopappus divaricatus, Heterotheca subaxillaris, and Gnaphalium obtusifolium L.
Inflorescence spiders: a cost/ benefit analysis for the host plant, Haplopappus venetus Blake (Asteraceae).
Extracts of different polarity from Baccharis trimera, Haplopappus rigidus Huperzia saururus, Maytenus ilicifolia, Satureja parvifolia and Senecio eriophyton were tested for their relaxant activity on smooth muscle using L-phenylephrine precontracted strips of corpus cavernosum obtained from Guinea pigs.
The only vegetation that can support the highly saline conditions of the edge of the lake are some species of Haplopappus (Asteraceae).
Seed predation and seedling mortality in the recruitment of a shrub, Haplopappus venetus (Asteraceae), along a climatic gradient.
shastensis Chrysothamnus nauseosus Pinus monticola Haplopappus bloomeri Gaultheria ovatifolia Purshia tridentata Vaccinium scoparium Symphoricarpos oreophilus Vaccinium alaskaense Ribes cereum Rubus lasiococcus Axis 3 Axis 4 Low Larix occidentalis Quercus chrysolepis Salix scouleriana Quercus kelloggii Physocarpus malvaceus Pinus lambertiana Lonicera utahensis Cornus nuttallii Spiraea betulifolia Arbutus menziesii Philadelphus lewisii Lonicera ciliosa Acer glabrum Lonicera hispidula Ribes lacustre Arctostaphylos viscida Oplopanax horridum Berberis piperiana Symphoricarpos albus Whipplea modesta High Chamaecyparis lawsoniana Picea sitchensis Abies magnifica var.