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Linaria vulgaris Mill.

Butter and eggs, common toadflax, yellow toadflax

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderLamialesAromatic herbs and shrubs, including lavender, lilac, olive, jasmine, ash, teak, snapdragon, sesame, psyllium, garden sage, mint, basil, and rosemary
FamilyPlantaginaceaePlantains
GenusLinariaFrom the Latin linum, “flax,” referring to the flax-like leaves of some species
SpeciesvulgarisCommon

About plant names...

I prefer the name butter and eggs for this attractive plant—the colors are right. This species of toadflax is native to most of Europe and part of Asia. It was introduced to North America as an ornamental in the mid 1800s, and it is now common, or even invasive.

Identification: Plants reach 1-3′ (30-91 cm) in height. Groups of flowers appear on a stalk. Each flower is about 1″ (2.5 cm) long, pale yellow with an orange spot. Leaves are numerous, narrow, shaped like grass blades, ¾-4″ (2-10 cm) long × 1/32-⅛″ (1-5 mm) wide. Flower shape and color is the most obvious identifying characteristic.

Online References:

Wildflowers, Ferns & Trees of Colorado, New Mexico, Arizona, and Utah

The USDA National Invasive Species Information Center

Wildflowers, Ferns & Trees of Colorado, New Mexico, Arizona, and Utah

Wikipedia

Www.oardc.ohio-state.edu

Illinois Wildflowers

CalPhotos

Plants for a Future, a resource and information centre for edible and otherwise useful plants

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/18/2009 · Acadia National Park, Bar Harbor, Maine · ≈ 4 × 2½″ (11 × 7.3 cm)

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/23/2023 · Kelly's Landing, Greenville Junction, Maine

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/18/2009 · Acadia National Park, Bar Harbor, Maine · ≈ 4½ × 3″ (11 × 7.9 cm)

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/10/2016 · Arlington St., Groton, Mass­a­chu­setts

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/18/2010 · Nashua River Rail Trail, Groton Center, Groton, Mass­a­chu­setts · ≈ 7 × 4½″ (17 × 11 cm)

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

6/26/2010 · Nashua River Rail Trail, Groton Center, Groton, Mass­a­chu­setts · ≈ 10 × 15″ (26 × 39 cm)

Linaria linaria (L.) Karst.， nom. inval.

 

Linaria vulgaris description by Thomas H. Kent, last updated 26 Sep 2023.

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Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/5/2016 · Nashua River Rail Trail, Groton, Groton, Mass­a­chu­setts

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/19/2009 · Acadia National Park, Bar Harbor, Maine · ≈ 6 × 9″ (14 × 22 cm)

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/15/2018 · Oak Hill, Littleton, Mass­a­chu­setts · ≈ 5 × 8″ (13 × 20 cm)

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/15/2016 · Cadillac Mountain Summit, Acadia, Bar Harbor, Maine

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

9/18/2009 · Acadia National Park, Bar Harbor, Maine · ≈ 8 × 5″ (19 × 13 cm)

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

10/7/2001 · Eastern Promenade ME, Portland, Maine · By Constance B. Kent ID is uncertain

Linaria vulgaris (butter and eggs, common toadflax, yellow toadflax)

7/27/2016 · Michaux State Forest, Caledonia State Park, Fayetteville, Penn­syl­vania

Range:

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