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Download Birds - Pima
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PLANT IDENTIFICATION TREES Catclaw Acacia • Bipinnately compound leaves • Brown, curved spines Catclaw Acacia Fruit: bean-like Flower: yellow, elongated Whitethorn Acacia • Leaves: Bipinnately compound • Spines: Straight, white • Bark: Reddish Whitethorn Acacia • Flower: yellow, spherical Desert Ironwood • Leaves: Simple pinnately compound • Flowers: Purple • Spines: dark, thin, slightly curved Desert Ironwood Velvet Mesquite • Leaves: Large, bipinnately compound • Relatively large leaflets and flowers My knee for scale Velvet Mesquite • Fruit: bean-like • Flowers: yellow, long Foothills Palo Verde • Leaves: Bipinnately compound • 4+ pairs of leaflets/“leaf” • Spines: none along branches • Bark: green Foothills Palo Verde • Fruit: bean-like • Flower: yellow, with white, upper banner petal Blue Palo Verde • • • • Leaves: bipinnately compound 3 or fewer pairs of leaflets/“leaf” Spines along branches Bark: Green Spine Spine Blue Palo Verde • Flower: yellow, with yellow, upper banner petal Shrubs Fairy Duster • Leaves: Bipinnately compound • Fine, dark green leaflets • Spines: none • Bark: whitish Fairy Duster • Flower: unique Desert Mistletoe • Parasitic • Appear as clumps in trees most commonly • Phainopepla is main vector Jojoba • Leaves: simple, vertical • Dioecious • Nuts appear on females in spring and summer Jojoba • Nuts produce high quality wax that is liquid at room temperature Instead of sperm whale oil Brittlebush • Leaves: simple, entire, triangle-shaped • Flowers: yellow (like lots of other plants Brittlebush • Yellow, like many other plants Limberbush • Leaves: simple, heartshaped • Bark: red • Flexible limbs Limberbush • Flowers: small, white Ocotillo • • • • Multiple arms Flowers: red, tubular Spines: straight, stout Drought deciduous Triangle-leaf Bursage • Leaves: simple, toothed, triangle-shaped Triangle-leaf Bursage • Burrs in fall Ratany • Non-descript plant most of year • Flowers: purple • Fruit: spined • Hemi-parasite Ratany Creosote Bush • Leaves have a single pair of leaflets • Yellow flowers developing into white seed pods Creosote Bush Creosote bush gall and midge Desert Broom • Leaves more like twigs Desert Broom • Leaves more like twigs Burroweed • Finely divided leaves • Flowers: yellow turning to white • Last year’s flower stalks remain for long time Burroweed Canyon Ragweed • Leaves: simple, long, triangleshaped with toothed margin • Usually occurs in washes and canyons Canyon Ragweed • Flowers: nondescript Sotol (Desert Spoon) • Rosette of leaves • Leaves have spines along edges but not at tips Cacti Saguaro Saguaro • • • • Seed 2000 seeds/fruit 100 fruits/year 100-150 years = 20 million+ seeds in lifetime, • But only one survives to replace individual in stable population Saguaro • Seedlings • Grow under nurse plant • Grow ½” first year • Grow 1’ in 15 years • Grow 10’ in 40 years (mature) Saguaro • Fruit is edible • Flower: white, large, blooms at night and closes forever the next day Southwest (or Fishhook) Barrel Cactus Spines: long, hooked Fruit: yellow Southwest (or Fishhook) Barrel Cactus • Flowers: yellow, orange, or red usually • Plant usually leans Hedgehog Cacti • Multiple heads • Spines not as dense as pincushion cacti Prickly Pear Cacti • Pads • Flowers: many colors • Fruit: purple when ripe Fishhook Pincushion Cactus • Very dense spines • Ring of pink flowers near top • Spines: longest with hooks Chain-fruit (or Jumping) Cholla • Fruit stay attached and form chains. • Flowers: often pink Chain-fruit (or Jumping) Cholla http://waynesword.palomar.edu/plmay98.htm Blown up 350x; overlapping scales on spine make pulling out the spine very difficult Teddybear Cholla Fruit are single and do not form chains. Teddybear Cholla • Spines: tend to be more dense than chain-fruit cholla Staghorn Cholla • Spines less dense and arms more spreading than chain-fruit or teddy-bear cholla Christmas Cholla • One spine per areole • Red fruit in winter • Thin segments
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