D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp


Lepidium fremontii S. Watson
DESERT PEPPERWEED
Life   Plantae   Dicotyledoneae   Brassicaceae   Lepidium


Click on map for details about points.

IDnature guide

Links
  • Associates
  • Missouri Botanical Garden

  • We parsed the following live from the Web into this page. Such content is managed by its original site and not cached on Discover Life. Please send feedback and corrections directly to the source. See original regarding copyrights and terms of use.
  • Flora of North America

Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo candida @ BPI (1)
Andrenidae  Andrena capricornis @ RMBL_ENT (1)

Perdita punctosignata @ UCRC_ENT (1)

Perdita tortifoliae @ BBSL (14); UCRC_ENT (110)
Bombyliidae  Aphoebantus tardus @ UCRC_ENT (1)

Apolysis acrostichalis @ UCRC_ENT (2)

Apolysis melanderella @ UCRC_ENT (3)

Apolysis petiolata @ UCRC_ENT (1)

Apolysis polius @ UCRC_ENT (3)
Colletidae  Hylaeus episcopalis @ UCRC_ENT (3)
Crabronidae  Steniolia @ UCRC_ENT (2)

Xenosphex boharti @ UCRC_ENT (1)
Dermestidae  Anthrenus @ UCRC_ENT (2)
Halictidae  Lasioglossum @ UCRC_ENT (6)
Leucospidae  Leucospis affinis @ UCRC_ENT (1)
Megachilidae  Ashmeadiella @ UCRC_ENT (2)
Melyridae  Eschatocrepis constrictus @ UCRC_ENT (2)

Trichochrous @ UCRC_ENT (21)
Miridae  Lopidea nigridia @ UCR_ENT (1)
Syrphidae  Eupeodes volucris @ UCRC_ENT (1)
Tachinidae  Phasia @ UCRC_ENT (1)

go to Discover Life's Facebook group

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
 
All Floras       Advanced Search
FNA Vol. 7 Page 570, 572, 578 , 582 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Lepidium

17. Lepidium fremontii S. Watson, Botany (Fortieth Parallel). 30, plate 4, figs. 3, 4. 1871.

Lepidium fremontii var. stipitatum Rollins; Nasturtium fremontii (S. Watson) Kuntze

Perennials or subshrubs; (woody base aboveground); (glaucous), glabrous throughout. Stems several from base, erect or ascending, branched (several) distally, 2-5.5(-10) dm. Basal leaves absent. Cauline leaves sessile; blade linear and undivided or pinnately lobed (lobes 3-7(-9), linear), (1.5-)2.2-8.4(-10.2) cm × (0.7-)1-2.8(-4.2) mm, base attenuate, not auriculate, margins entire, (similar, smaller distally). Racemes (panicles), elongated in fruit. Fruiting pedicels divaricate-ascending to horizontal, usually straight, rarely slightly curved, (terete), (3.5-)4.3-7.6 (-8.5) × 0.15-0.2 mm. Flowers: sepals obovate, 1.5-2.5 (-3) × 1-1.6 mm; petals white, spatulate, 2.5-4.2 × 1.5-2.2 mm, claw 1-2 mm; stamens 6; filaments 1.8-3 mm; anthers 0.4-0.7 mm. Fruits obovate to orbicular, (4-)4.5-7(-8) × 4.2-7(-8) mm, apically winged, apical notch (0.1-)0.2-0.5 mm deep; valves thin, smooth, not veined; style 0.2-0.8(-1) mm, exserted beyond apical notch. Seeds ovate, 1.6-2.1 × 0.9-1.1 mm. 2 n = 32.

Flowering Mar-Jun. Desert shrub communities, pinyon-juniper woodlands, sandy washes, gravelly deserts, barren knolls, bluffs, roadsides, steep limestone outcrops, rocky ledges and slopes; 400-2100 m; Ariz., Calif., Nev., Utah.

Rollins established var. stipitatum on the basis of fruits obovate with gynophores 0.5-0.75 mm versus (var. fremontii ) fruits orbicular to ovate and sessile. These two characters often do not covary and stipitate fruits occur sporadically throughout the species range, including Arizona ( Lemmon s.n. , GH), California ( Morefield 3427 , GH), and Nevada ( Comanor 18, GH; Hitchcock 3078 , GH).

Updated: 2024-05-18 19:29:22 gmt
Discover Life | Top
© Designed by The Polistes Corporation