[Bilberries, Blueberries, Cranberries, Grouseberries and Huckleberries: The Genus Vaccinium in the Cascade Mountains of Oregon and Washington]

Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry

Vaccinium membranaceum

Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum

Flower of Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare) - Ripe fruit and leaves of Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

The photo at left shows a close-up of the flower of thinleaf huckleberry as seen along Road 2329 at East Fork Adams Creek.........June 21, 2005. The photo at right shows the ripe fruit of thinleaf huckleberry observed along the Pacific Crest Trail #2000 near Three Corner Rock, Yacolt Burn Statel Forest......August 7, 2021.

Leaves of Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare) - Fall leaf color of Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

The photo at left shows a close-up of the upper stem leaves of thinleaf huckleberry as seen along Bird Creek at Bird Creek Campground (WA DNR) on the lower, southeastern slopes of Mt. Adams..........May 7, 2005. Note the leaf margins which are serrate much of their length. The photo at right shows a close-up view of the fall color change in the leaves of thinleaf huckleberry as seen along the East Crater Trail #48, Indian Heaven Wilderness......September 15, 2023.

Berries of Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

Ripe berries of the thinleaf huckleberry as seen along the Sunrise Peak Trail #262 in the Dark Divide, Gifford Pinchot National Forest..........September 12, 2014.

Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

Maturing fruits of the thinleaf huckleberry as seen along the Loowit Trail near the junction with the Sheep Canyon Trail, Mt. St. Helens National Volcanic Monument.........August 20, 2017.

Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Ripe fruit of Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

A ripe berry of thinleaf huckleberry as seen at left along the Boundary Trail #1 near Bear Pass, Mount Saint Helens National Monument.........August 5, 2015. The photo at right shows a ripe berry of black huckleberry as seen at the forest edge along the shoreline of Chenamus Lake, Indian Heaven Wilderness.....September 10, 2023.

Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare) - Flower of Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare)

Thinleaf huckleberry as seen along Road 2329 at East Fork Adams Creek.........June 21, 2005.

Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

Thinleaf huckleberry as seen along the Butte Camp Trail #238A, Mount St. Helens National Volcanic Monument.....August 11, 2022.

Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare)

Early blooming thinleaf huckleberry ? as seen along Bird Creek at Bird Creek Campground (WA DNR) on the lower, southeastern slopes of Mt. Adams.........May 7, 2005.

Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

Ripening fruits of thinleaf huckleberry as seen along the Cedar Creek Trail #457, Mount Hood National Forest........July 29, 2024.

Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum) - Colorful fall foliage of Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

Berries ripening on thinleaf huckleberry as seen at left along the Boundary Trail #1 near Dark Meadows, Gifford Pinchot National Forest.........July 3, 2015. The photo at right shows the fall foliage of thinleaf huckleberry as seen along the Fret Creek Trail #456, Badger Creek Wilderness......September 26, 2021.

Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare) - Flower of Thin-leaved Huckleberry, Big Huckleberry, Tall Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare)

Thinleaf huckleberry as seen on Crofton Butte on the southern slopes of Mt. Adams.........May 28, 2005.

Mountain Blueberry, Big Huckleberry, Thinleaf Huckleberry, Thin-leaved Huckleberry, Tall Huckleberry, Blue Huckleberry, Square-twig Blueberry: Vaccinium membranaceum (Synonyms: Vaccinium coccinium, Vaccinium globulare, Vaccinium membranaceum var. rigidum)

Still red fruits on thinleaf huckleberry along the MacKenzie River Trail #3507 on the south side of Clear Lake, Willamette National Forest....August 2, 2023.

Paul Slichter