• Sunrise at the Cholla Cactus Garden

    Joshua Tree

    National Park California

There are park alerts in effect.
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  • Cottonwood Trails Closed

    Trail access remains closed to Cottonwood Spring Oasis, Lost Palms Oasis, and Mastodon Peak. More »

  • Pinto Basin Road Under Construction; Expect 30+ Minute Travel Delays

    Visitors should expect 30+ minute waits when heading north and sound bound on the Pinto Basin Road. Due to construction activity around Cottonwood Visitor Center, additional waits of 30 minutes may be in place when leaving the visitor center parking lot. More »

  • Deteriorating conditions of Black Rock Canyon Road

    The road leading to Black Rock campground has deep potholes, is deeply rutted, and can be difficult to negotiate, especially in large vehicles. Please drive with caution.

Scientific Names A

Plants Listed By Scientific Name


*synonyms indicated with an asterik
Abronia villosa var. villosa
Acacia greggii* (under Senegalia greggii)
Acamptopappus sphaerocephalus var. hirtellus
Acamptopappus sphaerocephalus var. sphaerocephalus
Achnatherum coronatum* (under Stipa coronata)
Achnatherum hymenoides* (under Stipa hymenoides)
Achnatherum parishii* (under Stipa parishii)
Achnatherum speciosum* (under Stipa speciosa)
Achyronychia cooperi
Acmispon americanus var. americanus
Acmispon brachycarpus
Acmispon glaber var. brevialatus
Acmispon heermannii var. heermannii
Acmispon maritimus var. brevivexillus
Acmispon procumbens var. procumbens
Acmispon rigidus
Acmispon strigosus
Adenophyllum cooperi
Adenophyllum porophylloides
Adiantum capillus-veneris
Agave deserti var. deserti
Agave deserti var. simplex
Agrostis semiverticillata* (under Polypogon viridis)
Aliciella latifolia subsp. latifolia
Allionia incarnata var. incarnata
Allionia incarnata var. villosa
Allium denticulatum
Allium fimbriatum var. fimbriatum
Allium parishii
Aloysia wrightii
Amaranthus albus
Amaranthus blitoides
Amaranthus fimbriatus
Amaranthus torreyi
Ambrosia acanthicarpa
Ambrosia dumosa
Ambrosia salsola var. pentalepis
Ambrosia salsola var. salsola
Amelanchier utahensis
Amsinckia intermedia
Amsinckia menziesii
Amsinckia menziesii var. intermedia* (under Amsinckia intermedia)
Amsinckia menziesii var. menziesii* (under Amsinckia menziesii)
Amsinckia tessellata var. tessellata
Amsonia tomentosa
Androstephium breviflorum
Anisocoma acaulis
Antirrhinum coulterianum
Antirrhinum filipes
Apocynum cannabinum
Arabis dispar* (under Boechera dispar)
Arabis glaucovalvula* (under Boechera glaucovalvula)
Arabis perennans* (under Boechera perennans)
Arabis pulchra var. gracilis* (under Boechera xylopoda)
Arabis pulchra var. pulchra* (under Boechera pulchra)
Arctostaphylos glauca
Arenaria macradenia var. macradenia* (under Eremogone macradenia var. macradenia)
Argemone corymbosa
Argemone munita
Aristida adscensionis
Aristida californica
Aristida californica var. californica* (under Aristida californica)
Aristida purpurea var. fendleriana
Aristida purpurea var. nealleyi
Aristida purpurea var. parishii
Aristida purpurea var. purpurea
Aristida purpurea var. wrightii
Artemisia dracunculus
Artemisia ludoviciana subsp. albula
Artemisia ludoviciana subsp. incompta
Asclepias albicans
Asclepias erosa
Asclepias fascicularis
Asclepias subulata
Astragalus acutirostris
Astragalus aridus
Astragalus bernardinus
Astragalus coccineus
Astragalus didymocarpus var. dispermus
Astragalus layneae
Astragalus lentiginosus var. fremontii
Astragalus lentiginosus var. variabilis
Astragalus mohavensis var. mohavensis
Astragalus nutans
Astragalus nuttallianus var. cedrosensis
Astragalus nuttallianus var. imperfectus
Astragalus palmeri
Astragalus tricarinatus
Atrichoseris platyphylla
Atriplex canescens var. canescens
Atriplex canescens var. laciniata
Atriplex elegans var. fasciculata
Atriplex hymenelytra
Atriplex polycarpa
Avena fatua
Ayenia compacta

Did You Know?

Desert Queen Ranch branding iron

In the high desert country that was to become Joshua Tree National Park, rugged individuals tried their luck at cattle ranching, mining, and homesteading. William Keys and his family are particularly representative of the hard work and ingenuity it took to settle and prosper in the Mojave Desert. More...