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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Shrub > Species: Tetradymia nuttallii | Nuttall Horsebrush
 

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BOTANICAL AND ECOLOGICAL CHARACTERISTICS

SPECIES: Tetradymia nuttallii | Nuttall Horsebrush
GENERAL BOTANICAL CHARACTERISTICS : Nuttall horsebrush is a native, perennial, rigidly branched shrub that grows up to 4 feet (12 dm) tall [8,10]. RAUNKIAER LIFE FORM : Phanerophyte REGENERATION PROCESSES : Nuttall horsebrush regenerates vegetatively through root crown sprouting, as well as sexually via wind-dispersed seeds. Although flowers are highly fertile, seedlings are rarely observed in nature. This is probably due to the harsh environment in which this species occurs [9]. SITE CHARACTERISTICS : Nuttall horsebrush plants occur in sagebrush and shadscale communities on badlands, and dry barren hills and plains from 4,300 to 6,900 feet (1,300-2,100 m) [9]. Elevational ranges vary as follows [4]: from 5,600 to 6,500 feet (1,707-1,982 m) in CO 4,500 to 6,000 feet (1,372-1,829 m) in UT 6,200 to 6,200 feet (1,890-1,890 m) in WY SUCCESSIONAL STATUS : Nuttall horsebrush is a seral species and has the ability to increase in abundance during secondary succession through vigorously sprouting root crowns. Although flowers are highly fertile, seedlings are rarely observed in nature. This is probably due to the harsh environment in which this species occurs [4]. SEASONAL DEVELOPMENT : Nuttall horsebrush plants generally bloom from late May to early July [10]. Flowering dates are as follows [4]: State Earliest date oberved Latest date observed CO July July UT June June WY June August As typical with many xerophytes, the occurrence of flowering is correlated with distribution and rainfall. In very dry years some individuals or entire colonies do not bloom at all, or bloom but fail to mature fruits, probably due to decreases in water availability [9]. One way xerophytic species cope with a short growing season is by maturing flowers simultaneously. Often whole colonies of plants will bloom at once, and most horsebrush plants within a colony will flower within a few days of each other [9].

Related categories for Species: Tetradymia nuttallii | Nuttall Horsebrush

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Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

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