Mystery plant 041

You can find this plant throughout North America and temperate climates around the world.  When you recognize it, leave a comment below with its common name, scientific name, and any personal story you may have about the plant.

041-a

Young plant

041-b

Group of plants

041-c

Leaf arrangement and stem

041-d

Inflorescence

041-e

Inflorescence from above

041-f

Inflorescence with developing seeds

041-g

Dried (dead) plant


 

ANSWER (subsequently added to this post to facilitate the “search” function for these images): Heal-all (Prunella vulgaris)

Posted in Mystery plant | 6 Comments

Henbit (Lamium amplexicaule)

Henbit

The flowers of Henbit (Lamium amplexicaule) attract attention when they begin blooming in the spring.  Although Henbit is native to Eurasia and Africa, it now grows in disturbed places throughout North America and has a reputation as an unwelcome weed.

Henbit’s flowers grow in a whorl from leaf axils.  Leaves grow in pairs opposite each other along a square stem.  (Some lower leaves do grow singly with a petiole.)

Henbit

At any point in time, you can find Henbit flowers in different stages of development on the same plant.  In the next photo, there is a shriveled (brown) flower at the left, a view down the throat of a mature flower at the center of the image, a pair of mature flowers at the upper right (from the back side of the flower), and several new flower buds in development (just below the center mature flower).

Henbit

When Henbit’s flower dies, it withers, turns brown and drops off the plant.  Meanwhile, the seeds develop for the next generation of plants.

Henbit

Watch this video for more photos of Henbit throughout its life cycle.  The video includes some excellent images of the seeds of Lamium amplexicaule.

Posted in Plant Identification videos, Plant portraits | 3 Comments

Woodland plants with large leaves

Mayapple

Many people recognize and could easily identify Mayapple (Podophyllum peltatum) when they see it in the woods (from the midwest through the eastern portions of North America).  Its leaves seem quite unique with their peltate attachment of the leaf to the stem.  “Peltate” means “shield-shaped; a flat structure borne on a stalk attached to the lower surface rather than to the base or margin” according to Plant Identification Terminology.  Here are a couple more Mayapple leaves.

MayappleNow if you came across this next group of plants in the woods somewhere in the southeastern portion of North America, I suspect you would be tempted to label it as another group of Mayapples.

Umbrella leafThe leaves are large, they look peltate and they are growing at the same time of year as Mayapple.

Umbrella leafHowever . . .  this is a different plant entirely.  It is called Umbrella leaf (Diphylleia cymosa).  Let’s take a close look at a single leaf from each plant.  First, the Mayapple.

Mayapple

Mayapple

Next, the Umbrella leaf.

Umbrella leaf

Umbrella leaf

How would you describe each of these leaves?  Both are peltate — with veins running from the stalk attachment point to the leaf margins.  Both have toothed margins.  However, the Umbrella leaf margins definitely look “sharper” with more toothiness to them.  And the Mayapple leaf looks more deeply lobed.  In fact, those deep indentations frequently go almost to the center of the leaf — which can be clearly seen in the second image above.

Looking at the underside of the Mayapple leaf, we can see the strong veins along with the point of attachment of the leaf to the stalk.

Mayapple

Mayapple

Umbrella leaf has a similar look to the underside of its leaf.  However, notice the size of the leaf.  On a mature plant, the leaves can be two – four times the size of a healthy Mayapple leaf.

Umbrella leaf

Umbrella leaf

Here’s one more difference between these two plants.  The Mayapple flower grows underneath the leaves.  You have to lift the leaves up to see the flower (and later the fruit).

Mayapple

Mayapple

In contrast, the inflorescence of Umbrella leaf rises above the leaves.

Umbrella leaf

Umbrella leaf

This closer view of the Umbrella leaf inflorescence allows you to compare its individual flowers with the Mayapple flower shown above.

Umbrella leafIf you see these plants when they are not in flower (nor fruiting), you may have to stop and study the leaves a bit to decide which plant you are viewing.  Here’s a final image to allow you to decide which leaves belong to Mayapple (Podophyllum peltatum) and which belong to Umbrella leaf (Diphylleia cymosa).

Umbrella leaf and Mayapple

Posted in Plant comparisons | 2 Comments