[Rockcresses: The Genera Arabis, Boechera and Turritis in the Cascade Mountains of Oregon and Washington]

Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress

Boechera pauciflora

Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa

Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Fruits of Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa)

Hairystem rockcress observed in rocky meadows atop Monte Cristo, Monte Cristo Natural Area Preserve......June 21, 2022.

Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa)

Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa)

What may be hairystem rockcress as seen on Rhyolite Ridge about one quarter of a mile west of Pilot Rock, Cascade-Siskiyou National Monument......May 26, 2021.

Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa)

Hairystem rockcress observed atop the long ridgeline of Monte Cristo, Gifford Pinchot National Forest......June 18, 2021.

Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa) - Black-flowered Rockcress, Hairystem Rockcress, Sicklepod Rockcress: Boechera pauciflora (Synonyms: Arabis campyloba, Arabis holboellii, Arabis holboellii var. pinetorum, Arabis perelegans, Arabis sparsiflora, Arabis sparsiflora var. columbiana, Arabis sparsiflora var. subvillosa, Boechera sparsiflora var. subvillosa)

The fruiting inflorescences of what might be hairystem rockcress as seen atop Cispus Point, Gifford Pinchot National Forest..........July 4, 015.
Paul Slichter