# Columbian Larkspur (*delphinium trolliifolium*)

The Columbian Larkspur is an elegant, tall perennial wildflower native to the damp, shady environments of the Pacific Northwest. Rising majestically from the forest floor, it produces striking towers of deep blue-to-violet blossoms that light up understory habitats in the spring. Historically, it has held an important, albeit cautious, place in local ecology due to its potent chemical defenses. It belongs to the buttercup family (Ranunculaceae) and serves as a vital early-season nectar source for specialized forest pollinators.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 2
- **Habitat:** Typically found in moist, shady deciduous or coniferous forests, riparian corridors, and near freshwater seepages in coastal and mountain regions.

![Columbian Larkspur](https://inaturalist-open-data.s3.amazonaws.com/photos/7867124/medium.jpeg)

Photo: Alex Abair, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/7867124)

## Appearance

This plant stands between 50 to 150 centimeters tall, sporting erect, mostly unbranched stems. Its leaves are deeply divided into 3 to 5 palm-like lobes, giving them a jagged, hand-shaped appearance. The blossoms are arranged in a loose, terminal cluster, showcasing deep blue, purple, or occasionally white petals. A defining visual identifier is the elongated, backward-pointing spur (about 1 to 2 centimeters long) on each flower, which curls slightly at the tip.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Ranunculales
- **Family:** Ranunculaceae
- **Genus:** Delphinium

## Interesting facts

- It is notoriously toxic to grazing livestock, particularly cattle, causing coordination loss and respiratory failure if consumed in large quantities.
- The distinctive floral spur contains two hidden nectar glands, requiring pollinators to have specialized mouthparts to reach the sweet reward.
- The specific epithet 'trolliifolium' means 'leaves like Trollius', referring to its strong resemblance to the globe flower genus.

## Special abilities

- **Alkaloid Defense:** Produces highly toxic diterpene alkaloids, such as delphinine, to deter herbivores and insects from grazing on its foliage.
- **Nectar Spur Architecture:** Features a specialized deep floral spur that restricts nectar access to long-tongued pollinators, ensuring highly efficient pollen transfer.
- **Perennial Regeneration:** Regrows annually from a thick, woody rootstock, allowing it to survive harsh winter conditions and quickly sprout in early spring.

## Measurements & details

- **Length:** 50-150 cm
- **Lifespan:** 3-10 years

## Diet & Feeding

The Columbian Larkspur is a photoautotroph, generating its own energy through photosynthesis by capturing sunlight and absorbing water and minerals from the soil.

- **Primary Foods:** Sunlight, Water, Carbon Dioxide, Nitrogen, Phosphorus

## Ecological connections

- **Mutualism:** Yellow-faced Bumblebee (*Bombus vosnesenskii*) — Provides rich nectar rewards to this insect, which in turn acts as one of its most effective pollinators.
- **Mutualism:** [Rufous Hummingbird](https://www.snappit.app/explore/rufous-hummingbird) (*Selasphorus rufus*) — Visits the deep-spurred flowers during spring migration to drink nectar, assisting with cross-pollination.

## Safety

**Danger:** 1/5 · Very low

No special safety notes yet.

## Frequently Asked Questions

### How to identify Columbian Larkspur?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How long is Columbian Larkspur?

50-150 cm

### How long does Columbian Larkspur live?

3-10 years

### What does Columbian Larkspur eat?

The Columbian Larkspur is a photoautotroph, generating its own energy through photosynthesis by capturing sunlight and absorbing water and minerals from the soil.

### Where is Columbian Larkspur usually found?

Typically found in moist, shady deciduous or coniferous forests, riparian corridors, and near freshwater seepages in coastal and mountain regions.

## Where to spot

- [E. E. Wilson Wildlife Area](https://www.snappit.app/guides/places/e-e-wilson-wildlife-area) — Oregon, US · Nature Reserve
- [Fort Hoskins](https://www.snappit.app/guides/places/fort-hoskins) — Oregon, US · Park
- [Mount Pisgah Arboretum](https://www.snappit.app/guides/places/mount-pisgah-arboretum) — Oregon, US · Botanical Garden

[View all places to see Columbian Larkspur](https://www.snappit.app/guides/where-to-see/columbian-larkspur)

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Columbian Larkspur: Facts & Places to See — Snappit](https://www.snappit.app/explore/columbian-larkspur)