Lobelia spicata (Pale-spike Lobelia)

Plant Info
Also known as:
Genus:Lobelia
Family:Lobeliaceae (Lobelia)
Life cycle:perennial
Origin:native
Habitat:part shade, sun; wet meadows, prairies, open woods
Bloom season:June - August
Plant height:1 to 2 feet
Wetland Indicator Status:GP: FAC MW: FAC NCNE: FAC
MN county distribution (click map to enlarge):Minnesota county distribution map
National distribution (click map to enlarge):National distribution map

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Detailed Information

Flower: Flower shape: irregular Flower shape: tubular Cluster type: raceme

[photo of flowers] Flowers are sparsely to densely packed in a spike-like raceme that can grow over a foot long over time. Individual flowers are about ½ inch across, pale blue to white, tubular with 2 small upper lobes that are bent back and 3 larger lower lobes that are similar in size. All lobes have pointed tips. There are 2 yellowish spots at the base of the lower lobes, and a dark blue stigma that sits between the 2 upper lobes. One plant has a single spike.

Leaves and stem: Leaf attachment: alternate Leaf type: simple

[photo of lower leaves] Leaves are primarily in the lower half of the plant. Those near the base of the plant are spatula shaped to oval with rounded tips, to 3 inches long and 1 inch wide, with little or no stalk.

[photo of upper leaves] Leaves become smaller and more widely spaced as they ascend the stem. Those at the top may only be about ½ inch long. All leaves may have small teeth around the edges, or be toothless, sparsely hairy or hairless. The main stem is angled, with 4 or 5 edges.

Notes:

As Pale-spike Lobelia grows taller, it can bend and twist as if struggling to stay erect. The stems are a bit delicate, so it probably is. The Lobelia genus was once in its own Lobeliaceae family, then was moved to the Campanulaceae (Bellflower) family but is now back in Lobeliaceae. There are 2 varieties in Minnesota: var. spicata is mostly hairless, var. hirtella is mostly roughly hairy.

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More photos

Photos by K. Chayka taken at Rice Creek Trail Regional Park, Ramsey County, and Wild River State Park, Chisago County. Photos courtesy Peter M. Dziuk taken in Anoka County.

Comments

Have you seen this plant in Minnesota, or have any other comments about it?

Posted by: Pat - Pillager
on: 2011-09-05 21:20:55

I found some plants growing in native prairie last summer in Meeker Co. I marked them with tape to come back later to collect seed but just before they were ripe the county ditch mower person mowed them all down.

Posted by: Linda - Thomas Lake Park restored prairie
on: 2016-02-01 01:06:27

Three plants on the side of a hillock. Haven't noticed it in the park before but 2015 was a perfect weather spring/summer. Also saw a Turk's Cap lily 2 ft away (until a deer or person took it 2 days later) and it's the only place in park where the coreopsis grows each year so maybe good soil or location.

Posted by: Terry - In a State Wetland East of Pelican Lake Near Ashby, MN
on: 2016-06-29 15:35:15

Cute little things.

Posted by: Kenny h - Shooting Star Scenic By way West of LeRoy
on: 2017-07-12 12:51:20

I found one of these dainty little things for the first time yesterday July 11...to small of a target for my smart phone camera to focus on...found it by the Fringed Orchids.

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