Lake Mead Plant list

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Author:
joslyncurtis
ID:
100739
Filename:
Lake Mead Plant list
Updated:
2011-11-09 16:20:05
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Mojave Desert Lake Mead Plants Scientific Names
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Description:
In progress! Will be a database of Flash cards of all the species currently recognized as existing in the Lake Mead Recreation Area.
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The flashcards below were created by user joslyncurtis on FreezingBlue Flashcards. What would you like to do?



  1. Annual, climbing to prostrate, sometimes low and erect. Herbage adhesive by small, hooked prickles. Whorls of leaves 6-8
    Galium aparine- Rubiaceae


  2. Perennial, erect to straggling, variously glabrous, velvety, scabrous or hispid, hairs not hooked; Flower corollas red, pink or rarely yellow
    Galium wrightii- Rubiaceae

  3. Shrub, +/- erect, scabrous; Stem stout, brittle; Leaf whorls of 4, lanceolate to needle like, tip sharp to touch; Flowers whitish
    Galium stellatum ssp. eremicum- Rubiaceae

  4. Ann., decumbent and compact, 2-10cm, glandular or short pilose; lvs 3-5 linear lobes 5-11mm w/ mucronate tip; flws in terminal, bracteate clusters, open in both day and night
    Linanthus demissus- Polemoniaceae

  5. Ann., 4-10cm; st glandular; lves linear, entire 10-20mm, lves glabrous; flw 1-3 terminal or axillary, open only at night, subsessile
    Linanthus jonesii- Polemoniaceae

  6. Ann., glabrous, hairy or glandular; lvs lobed, linear, 3-6mm; flw on a thread-like peduncle; open day or night
    Linanthus aureus- Polemoniaceae

  7. Ann., dichotomously branching, glabrous; lves linear 1-3.5cm long; flw 1-3 terminal and axillary, sessile to subsessile; open only at night
    • Linanthus bigelovii- Polemoniaceae

  8. Ann., Fr. < 4mm, 1 row of seeds above mid-fr
    Mentzelia affinis- Loasaceae
  9. Per., compact, hemispheric growth form; fr. >4mm wide; grows on talus, rock outcroppings and canyon walls
    Mentzelia oreophila- Loasaceae
  10. Per.; fr. >4mm wide; open growth form w/ widely spaced flws; grows in sandy, gravelly areas
    Mentzelia integra- Loasaceae

  11. Per.; >4mm wide fr.; flw bracts green
    Mentzelia tricuspis- Loasaceae

  12. Per.; >4mm wide fr.; flw bracts white w/ green margins
    Mentzelia involucrata- Loasaceae
  13. Ann.; fr. < 4mm; St. hairy; flw bracts (ob)ovate gen. toothed, base whitish; fr. straight to < 70 deg.
    Mentzelia veatchiana- Loasaceae
  14. Ann.; fr. < 4mm; St. glabrous or hairy; flw bracts lanceolate to obovate, entire or toothed; fr. curved 90-180 deg
    Mentzelia albicaulis- Loasaceae
  15. Ann.; fr. < 4mm wide; flw bracts 0 or lanceolate entire; Seeds with flap-like fold at 1 end, angles rounded, surface rounded-papillate
    Mentzelia nitens- Loasaceae
  16. Ann.; fr. < 4mm wide; always has flw bracts triangular-ovate entire; seeds seed not folded at 1-end, angles acute, surface pointed-papillate
    Mentzelia jonesii- Loasaceae
  17. Delicate annual herb; lves basal
    Nemacladus glanduliferus- Campanulaceae
  18. Infl. 1 per node; Involucre, fr. hairy; Per.; Invol. +/- bell shaped; Seed 4-angled, smooth to +/- wrinkled; st. and lv. hairs short straight. *gland appendage maybe wider or narrower than gland*
    Chamaesyce polycarpa- Euphorbiaceae

  19. St segments cylindric to club-like w/ tubercles; Major spines distinctly flat w/ epidermal sheath separating only from tip; Largest spines with cross-rows of rough papillae; Ovary bristles stiff with reflexed barbes; Perianth yellow
    Grusonia parishii- Cactaceae- Matted cholla

  20. Sap milky; Leaves thistle-like, toothed and spiney; St w/ glandular hairs; Heads ligulate; Ligules all 5 lobed; clasping lv base rounded and curled
    Sonchus asper- Asteraceae- Prickly sow thistle

  21. Sap milky; Heads ligulate; Ligules all 5 lobed; Pappus of smooth bristles; Many flw / head; Corollas yellow; Clasping lv base rounded and curled
    Sonchus oleraceus- Asteraceae- Common sow thistle


  22. -Ann.; Involucre unribbed, stalked
    -Leaves basal and glabrous to coarsely hairy or hairy in patches;
    Sometimes stem is inflated below nodes;
    -Inflorescence glabrous or glandular only at base or nodes
    -Erect, thread-like pedicles
    -Involucre teeth 4
    -Flowers yellow
    -Perianth densely and often coarsely hairy
    ´╗┐´╗┐Eriogonum trichopes- Polygonaceae- Little desert trumpet

  23. -Ann.; Involucre unribbed, stalked
    -Lvs mostly basal, round-cordate to round-reniform, +/- tomentose on both sides
    -Perianth bases variablely lobed cordate, obtuse or truncate
    -Perianth minutely hairy
    Eriogonum thomasii- Polygonaceae- Thomas' buckwheat
  24. Inflor. axes glandular; Invol. stalks reflexed
    Eriogonum brachypodum- Polygonaceae- Parry's buckwheat
  25. Involuc. stalks reflexed
    Eriogonum cernuum- Polygonaceae- Nodding buckwheat
  26. Invol. stalk absent, reflexed or rarely erect
    Eriogonum deflexum var. deflexum- Polygonaceae- Flatcrown buckwheat
  27. Stem inflated below nodes; Invol. stalks absent or erect;
    Eriogonum inflatum- Polygonaceae- Desert trumpet
  28. Lvs basal and cauline; Involuc. stalk erect;
    Eriogonum maculatum- Polygonaceae- Spotted buckwheat
  29. Ann.; Involuc. sessile; Perianth always yellow; Inflor. branches gen. curved inward
    Eriogonum nidularium- Polygonaceae- Birdnest buckwheat

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