Invasive Plants
found at Cypress

A list in progress

Cypress Bowl: An August 2011 Cypress Bowl Olympics Venue Site inventory, prepared for BC Parks by Genoa Environmental, listed 13 invasive plant species of concern (order as given in report). Photos and more information about these plants can be found on websites listed in the “Identifying Invasive Plants” section above.

1.Japanese knotweed – Fallopia japonica

2.Scentless chamomile – Matricaria perforata

3.Yellow hawkweed – Hieracium pratense

4.Hawkweed species – Hieracium sp.

5.Common hawkweed – Hieracium vulgata

6.Common tansy – Tanacetum vulgare

7.Scotch broom – Cytisus scoparius

8.Himalayan blackberry – Rubus armeniacus

9.Oxeye daisy – Leucanthemum vulgare

10.Canada thistle – Cirsium arvense

11.Curled dock – Rumex crispus

12.St. John’s-wort – Hypericum perforatum

13.Hairy cat’s ear – Hypochaeris radicata


Hollyburn Ridge: In August 2011 an Invasive Plant Council of Metro Vancouver (IPCMV) team chemically treated a very large Giant hogweed infestation in Hollyburn Ridge.  The following were also identified and treated: Blueweed [Viper’s Bugloss] (Echium vulgare), Orange Hawkweed (Hieracium aurantiacum), and Yellow Hawkweed (Hieracium pratense).  Funding for IPCMV’s work was provided though a BC Parks’ Community Legacy Program grant. 


Quarry Lookout Picnic Site and Cypress Bowl Road: Areas around the picnic site (3rd switchback on the Cypress Bowl Road) contain several invasive plants including Buddleja [Butterfly Bush] (Buddleja davidii), Dame’s Rocket (Hesperis matronalis), English Ivy (Hedera helix), Goutweed (Aegopodium podagraia), Himalayan Blackberry (Rubus armeniacus), Periwinkle (Vinca minor), Peruvian Lily (Alstroemeria aurantiaca), Scotch Broom (Cytisus scoparius), and Welsh Poppy (Meconopsis cambrica).  Scotch Broom grows in several locations along the road from the 1stth switchback to Cypress Bowl, with Buddleja growing along the road from the 1st switchback up to Quarry Lookout.  [Plants reported by volunteers.]


Other non-native plant species identified at Cypress by volunteers:  Depending on the lists consulted, the following plants are considered invasive, noxious, or nuisance plants.  Some are “simply” garden plants, out of place in a mountain park and capable of spreading.  All should be removed, if possible, before they encroach further on the park’s natural environment, but please note that members of the public should not remove plants from the park without prior permission from BC Parks.  Disturbed areas in Cypress Bowl and Hollyburn Ridge should be re-vegetated with native plants to the greatest degree possible and routinely monitored for invasive plants.


Friends of Cypress is in process of creating a system for recording non-native plants found in the park, including location, date and photo ID. These records will be helpful in keeping invasive plants under control at Cypress. Please contact us here for more information and/or to offer assistance.  The following list is a work in progress.

1.Campanula rapunculoides – Creeping Bellflower

2.Centaurea montana - Bachelor’s Button

3.Convolvulus arvensis - Field Bindweed

4.Crocus sp. - Dutch Crocus

5.Digitalis purpurea - Foxglove

6.Elymus repens - Quackgrass

7.Endymion non-scripta English Bluebell

8.Malva alcea - Mallow 

9.Matricaria matricariodes - Pineappleweed 

10.Phalaris arundinacea - Reed Canary Grass

11.Plantago major - Common Plantain

12.Polygonum sp. - Smartweed 

13.Ranunculus repens - Creeping Buttercup 

14.Symphytum officinale - Comfrey 

15.Taraxacum officinale - Dandelion

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