SPREADING YELLOWCRESS
|
 |
| File Size: 63 KB |
|
|
|
Rorippa sinuata (Nutt. ) Hitchc.
|
| Ellsworth County, Kansas |
| Perennial |
| Height: 6 to 20 inches |
| Family: Brassicaceae - Mustard Family |
| Flowering Period: April, May, June, July, August |
|
| Stems: | | Decumbent to prostrate or ascending, much-branched above, sparsely to moderately pubescent. | | Leaves: | | Basal and/or cauline, alternate; basal leaves simple, usually sessile, sometimes short-petiolate; blade oblanceolate to spatulate in outline, .8 to 4 inches long, .2 to 1.4 inch wide, margins pinnatifid, under surfaces pubescent with simple hairs, upper surfaces glabrous; cauline leaves sessile; blade oblanceolate to oblong or lanceolate, .8 to 3.6 inches long, .2 to .8 inch wide; base auricled or not, sometimes clasping stem, margins coarsely serrate to pinnatifid. | | Inflorescences: | | Racemose, terminal; fruiting pedicels widely spreading, often with sigmoid curve, .3 to .5 inch. | | Flowers: | | Sepals 4, distinct, ascending, ovate to lanceolate or oblong, .1 to .16 inch; petals 4, yellow, oblong to oblanceolate or narrowly spatulate, .12 to .2 inch, longer than sepals; stamens 6, 4 long stamens barely exserted, 2 short stamens included. | | Fruits: | | Siliques, cylindric, ascending, .16 to .6 inch long, .04 to .1 inch wide; seeds yellowish brown, heart-shaped, less than .04 inch, minutely papillose. | | Habitat: | | Muddy to sandy shores of rivers, streams, and ponds, marshes, ditches, and wet depressions | | Distribution: | | Throughout Kansas | | Origin: | | Native | | Uses: | | The Zuni used smoke from the flowers to alleviate inflamed eyes. | | Comments: | | Rorippa, a Saxon name, and sinuata, wavy, alluding to the leaf margins. |
|
| Spreading yellowcress inflorescence |  | | 73 KB | | Ellsworth County, Kansas |
| | Spreading yellowcress leaves |  | | 81 KB | | Ellsworth County, Kansas |
| | Spreading yellowcress leaf |  | | 89 KB | | Ellsworth County, Kansas |
| | |
|
|
|
|
|
|
