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Plants of Lowell National Historical Park

The plants most often spotted in Lowell, ranked by recent research-grade observations.

393
recent observations
50
species listed
50
plants

Naturalists have logged 393 research-grade observations across the 50 most-recorded species in Lowell. The most frequently seen is the Tree-of-heaven, with 25 recorded sightings.

Rarer finds confirmed in Lowell include Spotted Wintergreen - uncommon enough that a sighting is worth logging.

Spotted Wintergreen

Most-observed plants in Lowell

Tree-of-heaven
Ailanthus altissima
25 observations
American Pokeweed
Phytolacca americana
18 observations
Common Mugwort
Artemisia vulgaris
15 observations · iNaturalist
Common Milkweed
Asclepias syriaca
14 observations
Purple Crownvetch
Securigera varia
14 observations · iNaturalist
Box Elder
Acer negundo
12 observations
Common Toadflax
Linaria vulgaris
12 observations
Great Mullein
Verbascum thapsus
12 observations
Norway Maple
Acer platanoides
11 observations · iNaturalist
Black Swallow-wort
Vincetoxicum nigrum
11 observations · iNaturalist
Bladder Campion
Silene vulgaris
10 observations · iNaturalist
Garlic Mustard
Alliaria petiolata
10 observations
Striped Wintergreen
Chimaphila maculata
10 observations
White Clover
Trifolium repens
9 observations
Red Clover
Trifolium pratense
8 observations
Bull Thistle
Cirsium vulgare
8 observations
Bittersweet Nightshade
Solanum dulcamara
8 observations
Common Soapwort
Saponaria officinalis
8 observations · iNaturalist
Japanese Knotweed
Reynoutria japonica
8 observations
Silver Maple
Acer saccharinum
7 observations
Black Locust
Robinia pseudoacacia
7 observations
Eastern Poison Ivy
Toxicodendron radicans
7 observations
Asian Bittersweet
Celastrus orbiculatus
7 observations
Wild Carrot
Daucus carota
7 observations
River Birch
Betula nigra
7 observations
Common Dandelion
Taraxacum officinale
6 observations
Chicory
Cichorium intybus
6 observations
Ground-ivy
Glechoma hederacea
6 observations · iNaturalist
Lesser Periwinkle
Vinca minor
6 observations · iNaturalist
Jimsonweed
Datura stramonium
6 observations
White Campion
Silene latifolia
6 observations · iNaturalist
Princess Tree
Paulownia tomentosa
6 observations · iNaturalist
Bird's-foot Trefoil
Lotus corniculatus
5 observations · iNaturalist
Red Maple
Acer rubrum
5 observations
American Sycamore
Platanus occidentalis
5 observations
Common Yarrow
Achillea millefolium
5 observations
Asiatic Dayflower
Commelina communis
5 observations · iNaturalist
Alder Buckthorn
Frangula alnus
5 observations · iNaturalist
Black Medick
Medicago lupulina
5 observations · iNaturalist
Japanese Barberry
Berberis thunbergii
5 observations · iNaturalist
White Sweetclover
Melilotus albus
5 observations
Purple Loosestrife
Lythrum salicaria
5 observations
Wild Four O'Clock
Mirabilis nyctaginea
5 observations · iNaturalist
Rugosa Rose
Rosa rugosa
5 observations · iNaturalist
Wild Bergamot
Monarda fistulosa
5 observations
Fortune's Spindle
Euonymus fortunei
5 observations · iNaturalist
Common St. John's Wort
Hypericum perforatum
4 observations
Common Lambsquarters
Chenopodium album
4 observations
Lesser Burdock
Arctium minus
4 observations
Black-eyed Susan
Rudbeckia hirta
4 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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