Ivesia aperta var. canina
| Taxonomy | |||||
|---|---|---|---|---|---|
| Scientific Name: | Ivesia aperta var. canina | ||||
| Common name: | Dog Valley ivesia | ||||
| Rank and Status | |||
|---|---|---|---|
| Global Rank: | G2T1 | Native Status: | Native |
| Subnational (State) Rank: | S1 | Endemic: | No |
| US ESA Status: | None | Sand Dunes: | No |
| NNHP Tracking Status: | At-Risk List | Wetland: | No |
| Other Agency Status | Status | Last Updated | Status Comments |
|---|---|---|---|
| US Forest Service - Region 4 (Intermountain) | Sensitive | USFS list, Jan 2015 update | |
| Nevada Native Plant Society | Threatened | Nevada Rare Plant Workshop |
| Distribution (NV Counties) |
|---|
Status: Confident or certain
|
Washoe |
| Summary Occurrence Data | |
|---|---|
| Occurrence Count: | 1 |
| Total Observed Area (hectares): | Not Available |
| Maximum Known Elevation (m): | 1949 |
| Minimum Known Elevation (m): | 1932 |
| Links |
|---|
| Ivesia aperta var. canina data at NatureServe |
| Ivesia aperta var. canina photos and data at Encyclopedia of Life |
| Character Abstract | |
|---|---|
| Identification Comments: | Caudex simple, on a thick taproot. Basal leaves estipulate, 10-20 (25) cm long, 5-15 mm wide; hairs of petiole <=2 mm long, ascending-erect; leaflets 20-35 pairs, divided to the base into 1-3 linear-elliptic to broadly oblanceolate lobes, these sometimes further lobed, (3) 5-13 mm long, 1.3-3 mm wide, the apex obtuse to acute. Stems decumbent to ascending, (10) 17-40 cm long, 1.5-3 mm thick (thickest where flattened at base). Inflorescence consisting of 1-10 clusters 1.5-2.5 cm wide bearing ca 5-10 flowers each; pedicels mostly 1-3 mm long, the lowermost to 5 mm long; hypanthium cupulate, externally 1.5-2 mm deep (from pedicel to base of bractlet), (3) 3.5-5 mm wide (pressed, at level of bractlet attachment), pale green, internally golden; bractlets ± lanceolate, (1.5) 2-3.5 mm long; sepals narrowly triangular, (3) 4-5.5 mm long; petals pale yellow (paler than var. <i>aperta</i>), broadly lanceolate to obovate, rounded apically, (3) 4-7 mm long, (1.5) 2.5-3.5 mm wide, the base narrowed to a broad indistinct claw to ca 1 mm long; filaments 1.5-3.5 (4) mm long; anthers ovoid to round, light yellow, 0.5-0.7 mm long, sometimes with a terminal apiculus (not as well developed as in<i> |
| Subspecies Comments: | |
| Lookalikes: | Distinguished from <i>Ivesia sericoleuca</i> by its yellow petals, and from <i>Ivesia aperta</i> var. <i>aperta</i> by petals (3) 4-7 mm long, broadly oblanceolate to obovate; flowers more than 1 cm diam; filaments (1.5) 2-4 mm long; stems decumbent-ascending. |
| Phenology Comments: | |
| Reproduction Comments: | Flowering late spring to early summer. |
| Habitat Comments: | Shallow, vernally saturated, poorly drained rocky soils of volcanic origin on flats and shallow drainages, surrounded by yellow pine forest and supporting meadow and low sagebrush vegetation. |
| Ecology Comments: | |
| Inventory Comments: | |
| Inventory Needs: | |
| Version Date: |
 whole plant in flower
Photographer: Copyright Gary Monroe, Nevada Native Plant Society
Photo Date: |
 close-up of flowers
Photographer: Copyright Gary Monroe, Nevada Native Plant Society
Photo Date: |
 Ivesia aperta var. canina flowers
Photographer: Jim Morefield (Nevada Natural Heritage Program)
Photo Date: 17 June |
 Ivesia aperta var. canina flowering plants in habitat
Photographer: Jim Morefield (Nevada Natural Heritage Program)
Photo Date: 17 June |
 Ivesia aperta var. canina leaves and stems
Photographer: Jim Morefield (Nevada Natural Heritage Program)
Photo Date: 17 June |
 Ivesia aperta var. canina habitat with flowering plants
Photographer: Jim Morefield (Nevada Natural Heritage Program)
Photo Date: 17 June |
 Ivesia aperta var. canina habitat with flowering plants
Photographer: Jim Morefield (Nevada Natural Heritage Program)
Photo Date: 17 June |
