<![CDATA[Image RSS Feed for Image Collection 339 - greater celandine (Chelidonium majus) - Selected Images only]]> http://www.ipmimages.org/collections/viewcollection.cfm?id=339 Appearance

Chelidonium majus is a brittle, herbaceous biennial that reaches 11-31 in. (30-80 cm) in height. Its stems are ribbed and branching. The lower parts of the branches are pubescent. When the branches or leaves are broken a yellowish-orange sap can be seen.

Foliage

The alternate cauline leaves can be up to 13 in. (35 cm) in length, with petioles measuring 0.75-4 in. (2-10 cm) long. The thin leaf blades are glaucous beneath, deeply 5-9 lobed and are irregularly dentate around the margins. The veins of the lower leaf surfaces have fine, short hairs.

Flowers

The bright yellow flowers are contained in axillary pedunculate umbels. The peduncle itself measures 0.75-4 in. (2-10 cm) long. Each flower has four obovate to oblong petals that measure about 0.4 in. (1 cm) wide. This plant usually flowers from May to June.

Fruit

The "lumpy" capsules are linear to oblong-shaped and measure 0.75-2 in. (2-5 cm) in length. Within the capsule are black seeds with reticulate pitting on their surface.

Ecological Threat

Chelidonium majus can become abundant in minimally managed habitats and can outcompete other native herbaceous plants. It is most often found in disturbed areas especially with moist soil. Conceivably its seeds could be moved to other habitats by ants.

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Fri, 29 Mar 2024 07:08:25 -0400 Fri, 29 Mar 2024 07:08:25 -0400 http://Images.bugwood.org/ <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271019 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271019 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271020 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271020 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271021 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271021 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271024 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271024 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271022 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271022 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271023 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5271023 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5307003 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5307003 <![CDATA[greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5451534 greater celandine Chelidonium majus]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5451534