. Common weeds of the Canadian Prairies;. Weeds. Mirabilis nyctaginea (Michx.) MacM. HEART-LEAVED UMBRELLAWORT An erect perennial to 3 feet high, with an almost hairless stem swollen at the nodes. Leaves opposite, heart-shaped, 2 to 4 inches long, 1 to 3 inches wide. Flowers without petals but sepals deep reddish, united into a bell or funnel, in clusters of 3 to 5 with a saucer-like bract beneath. Quite common on rich soils in southeastern areas and spreading westward. Moldavica parviflora (Nutt.) Britton AMERICAN DRAGONHEAD An erect, usually branched annual or biennial with a finely hairy st
. Common weeds of the Canadian Prairies;. Weeds. Mirabilis nyctaginea (Michx.) MacM. HEART-LEAVED UMBRELLAWORT An erect perennial to 3 feet high, with an almost hairless stem swollen at the nodes. Leaves opposite, heart-shaped, 2 to 4 inches long, 1 to 3 inches wide. Flowers without petals but sepals deep reddish, united into a bell or funnel, in clusters of 3 to 5 with a saucer-like bract beneath. Quite common on rich soils in southeastern areas and spreading westward. Moldavica parviflora (Nutt.) Britton AMERICAN DRAGONHEAD An erect, usually branched annual or biennial with a finely hairy stem, 1 to 2 feet high. Leaves lanceolate to oblong, 1 to 2 inches long, stalked, with large pointed teeth. Flowers in dense cluster 1 to 2 inches long and 1 to H inches wide. Calyx stiff and spiny, giving a prickly stiffness to the clusters. Petals light-blue, only slightly longer than sepals. In woodland open- ings and old pastures, plentiful locally but not common. Monolepis nuttalliana (R. & S.) Greene SPEAR- LEAVED GOOSEFOOT A prostrate annual with fleshy reddish stems and hastate or spear-shaped leaves, which form a rosette in early stages. Plant spreading out over ground, often measuring 1 foot across. Flowers in small clusters in leaf axils. Germinat- ing in early spring and flowering early. A weedy native, thriving in saline soils but also found on cultivated land. Neslia paniculata (L.) Desv. BALL MUSTARD A tall, erect annual or winter annual 1 to 2 feet high, with branched stem. Plant yellowish- green, with starry hairs. Lower leaves some- what stalked, lanceolate; stem leaves arrow- shaped, clasping stem. Flowers orange-yellow, small, i inch across, clustered at the stem ends. Pods small, round, in long racemes, -^ inch long, with one seed, remaining on plant when ripe. Introduced, widespread. 50. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrat
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Keywords: ., bookcentury1900, bookpublisherottawaqueensprin, booksubjectweeds
