Peña Blanca, southwestern Organ Mountains, 28 Sep 2013, partial list of seen (I am sure I missed some) Compiled by Patrick Alexander

Amaranth family (Amaranthaceae) heartleaf morning-glory (Ipomoea cardiophylla) Palmer's amaranth / carelessweed (Amaranthus Trans-Pecos morning-glory (Ipomoea cristulata) palmeri) ivyleaf morning-glory (Ipomoea hederacea) Torrey's amaranth, (Amaranthus torreyi) four-wing saltbush (Atriplex canescens) Mormon tea family (Ephedraceae) slender snake-cotton (Froelichia gracilis) longleaf mormon tea / longleaf jointfir (Ephedra woolly tidestromia, (Tidestromia lanuginosa) trifurca)

Sumac family (Anacardiaceae) Spurge family (Euphorbiaceae) little-leaf sumac (Rhus microphylla) copperleaf (Acalypha neomexicana) rattlesnake weed (Chamaesyce albomarginata) Asparagus family (Asparagaceae) threadstem sandmat (Chamaesyce revoluta) sotol (Dasylirion wheeleri) sawtooth sandmat (Chamaesyce serrula) banana yucca (Yucca baccata) squareseed spurge (Euphorbia exstipulata var. Torrey's yucca (Yucca treculeana) exstipulata and Euphorbia exstipulata var. lata)

Sunflower family (Asteraceae) Bean family () hairyseed bahia (Bahia absinthifolia) catclaw / wait-a-minute bush (Mimosa biuncifera) cutleaf brickellbush (Brickellia laciniata) tepary bean (Phaseolus acutifolius var. acutifolius) tarbush () slimjim bean (Phaseolus filiformis) threadleaf snakeweed (Gutierrezia microcephala) mesquite (Prosopis glandulosa) ragged marsh-elder / ragweed (Hedosyne western whitethorn acacia ( constricta) ambrosiifolia) eastern whitethorn acacia (Vachellia vernicosa) mariola (Parthenium incanum) limoncillo / fivebract chinchweed (Pectis filipes) Ocotillo family (Fouquieriaceae) limoncillo / manybristle chinchweed (Pectis papposa) ocotillo (Fouquieria splendens) Trans-Pecos poreleaf (Porophyllum scoparium) Abert's dome (Sanvitalia abertii) Silk-tassel family (Garryaceae) American threefold (Trixis californica) Wright's silk-tassel (Garrya wrightii) cowpen daisy (Verbesina encelioides) sunflower goldeneye (Viguiera dentata) Ratany family (Krameriaceae) desert zinnia (Zinnia acerosa) range ratany (Krameria erecta)

Cactus family (Cactaceae) Stickleaf family (Loasaceae) Scheer's pincushion (Coryphantha scheeri) stinging devil (Cevallia sinuata) cane cholla (Cylindropuntia imbricata) mountain stickleaf / Organ Mountain blazing-star Fendler's hedgehog cactus (Echinocereus fendleri) (Mentzelia asperula) haystack cactus (Echinocereus stramineus) fishhook barrel cactus (Ferocactus wislizeni) Mallow family (Malvaceae) Engelmann's prickly pear (Opuntia engelmannii) rock hibiscus (Hibiscus denudatus) New Mexico prickly pear / tulip prickly pear (Opuntia spreading fanpetals (Sida abutifolia) phaeacantha) Martyniaceae Caper family (Capparaceae) devil's claw (Proboscidea parviflora) clammyweed (Polanisia dodecandra) Four-o-clock family (Nyctaginaceae) Morning-glory family (Convolvulaceae) goosefoot moonpod (Acleisanthes chenopodioides) trailing windmills (Allionia incarnata) fivewing spiderling (Boerhavia triquetra var. intermedia) spiderling / red cyphomeris (Cyphomeris gypsophiloides)

Grass family (Poaceae) sixweeks three-awn (Aristida adscensionis) purple three-awn (Aristida purpurea) cane bluestem (Bothriochloa barbinodis) needle grama (Bouteloua aristidoides) sixweeks grama (Bouteloua barbata) sideoats grama (Bouteloua curtipendula) black grama (Bouteloua eriopoda) hairy grama (Bouteloua hirsuta) nine-awn pappusgrass (Enneapogon desvauxii) stinkgrass (Eragrostis cilianensis) Lehmann's lovegrass (Eragrostis lehmanniana) tanglehead (Heteropogon contortus) green sprangletop (Leptochloa dubia) bush muhly (Muhlenbergia porteri) panic-grass (Panicum sp.) burrograss (Scleropogon brevifolius) slim tridens (Tridens muticus)

Buckwheat family (Polygonaceae) Abert's buckwheat (Eriogonum abertianum)

Maidenhair fern family (Pteridaceae) Windham's false cloak-fern / Windham's scaly cloak- fern (Astrolepis windhamii) Lindheimer's lip-fern (Cheilanthes lindheimeri) Standley's cloak-fern (Notholaena standleyi)

Vervain family (Verbenaceae) oreganillo / Wright's beebrush (Aloysia wrightii)

Caltrop family (Zygophyllaceae) warty caltrop (Kallstroemia parviflora) creosote bush (Larrea tridentata) goat-head (Tribulus terrestris)