Collinsia grandiflora Lindl.
large-flowered blue-eyed Mary (giant blue eyed Mary)
Plantaginaceae (Mare's-tail family)
(Previously in Scrophulariaceae)

Introduction to Vascular Plants

Photograph

© Doug Murphy     (Photo ID #66097)


Map

E-Flora BC Static Map

Distribution of Collinsia grandiflora
Click here to view the full interactive map and legend

Species Information

General:
Annual herb from a taproot; stems erect, 5-40 cm tall, simple or branched, nearly smooth below, glandular-hairy above.
Leaves:
Opposite, oblong to lanceolate, 1-4 cm long, minutely toothed to entire, nearly smooth, the lower leaves on 5- to 10 mm-long stalks, the middle and upper leaves unstalked or nearly so, becoming bract-like, smaller and linear in the inflorescence.
Flowers:
Inflorescence an open, terminal cluster of short-stalked flowers, (1) 3 to 7 per node, whorled in the axils of leaflike bracts, the stalks smooth to minutely hairy or glandular-hairy; corollas 7-17 mm long, the tube abruptly bent near the base at a right angle to the calyx and short-pouched at the bend, 2-lipped, the upper lip 2-lobed, blue to purple, pale at the centre, the lower lip 3-lobed, deep blue-violet; calyces 4-8 mm long, 5-lobed, the lobes awl-shaped, 2-5 mm long; stamens 4.
Fruits:
Capsules, 4-5 mm long; seeds usually 4, round-oblong, smooth, reddish-brown.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Collinsia grandiflora

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
678 90 1008
Slope Gradient (%)
33 0 90

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

216 45 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 0 5
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
17
Modal BEC Zone Class
IDF

All BEC Zones (# of stations/zone) species was recorded in

BG(1), CWH(1), ICH(1), IDF(8), PP(5)

Habitat and Range

Vernally moist to dry grassy slopes, mossy rock outcrops and forest edges in the lowland and montane zones; frequent in S BC in and west of the Coast-Cascade Mountains, infrequent N along the coast to 54degreeN; S to UT and CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Antirrhinum tenellum Pursh
Collinsia grandiflora var. pusilla A. Gray
Collinsia parviflora var. grandiflora (Lindl.) Ganders & Krause
Collinsia tenella (Pursh) Piper

Taxonomic Notes

Blue-eyed Marys as a group have extra-floral nectaries (packets of nectar) that occur outside the flower, sometimes on the leaves.