The Morton Arboretum
The Field Museum
Chicago Botanic Garden
Additional Partners
Log In
New Account
Sitemap
Home
Search Collections
Map Search
Browse Images
Inventories
Aquatic Invasive Plant Guide
Naturalized flora of The Morton Arboretum
vPlants Checklist
Chicago Region Checklists and Inventories
Interactive Tools
vPlants Dynamic Key
Dynamic Checklist
Dynamic Key
Thelypodium milleflorum
A. Nelson
(redirected from:
Thelypodium laciniatum var. milleflorum
(A. Nelson) Payson)
Family:
Brassicaceae
Many-Flower Thelypody
[
Thelypodium laciniatum var. milleflorum
(A. Nelson) Payson]
FNA
Resources
Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Biennials;
somewhat glaucous, glabrous (except petioles).
Stems
(hollow), branched distally, (1.8-) 4.5-13(-21) dm.
Basal leaves
(and proximal cauline): petiole (1-)1.8-9.5(-13) cm, ciliate; blade often oblong, sometimes ovate or lanceolate, (3.8-) 6-23(-28) cm × (9-)20-65(-100) mm, margins usually dentate, sometimes sinuate, rarely repand.
Cauline leaves
petiolate; blade lanceolate, similar to basal, smaller distally, margins dentate or entire.
Racemes
dense, slightly elongated in fruit (to 10 dm, flower buds narrowly oblong).
Fruiting pedicels
erect distally, strongly curved upward, stout, (1.5-)2.5-5(-7) mm, slightly flattened at base.
Flowers:
sepals erect, oblong to linear-oblong, (4-)4.5-8(-9) × 1-2 mm; petals white, spatulate to oblanceolate, (7-)9-15(-16) × 1-2 mm, claw strongly differentiated from blade [(3-)3.5-5.5(-6) mm, widest at base]; nectar glands confluent, median and lateral; filaments subequal, (6-)7-14.5(-15.5) mm; anthers exserted, linear to narrowly oblong, 2.5-4.5(-6) mm, circinately coiled, (apiculate); gynophore (0.5-) 1-4(-6) mm.
Fruits
erect, (subappressed to rachis), torulose, somewhat tortuous, terete, (1.8-)3.3-8(-10) cm × (0.7-)1-1.5(-1.8) mm; ovules 50-78 per ovary; style usually cylindrical, rarely subclavate, (0.5-)0.7-1.5 (-3) mm.
Seeds
(0.7-)1-1.5(-2) × 0.5-0.7(-1) mm.
2
n
= 26.
Flowering Apr-Aug. Sand dunes, sagebrush and desert shrub communities; 150-2200 m; B.C.; Calif., Idaho, Nev., Oreg., Utah, Wash.
Open Interactive Map
Click to Display
100 Initial Images
- - - - -
View All Images